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102202202010020 = 22571378275296609
BaseRepresentation
bin10111001111001111001101…
…111100100011000110100100
3111101212102202011220202121212
4113033033031330203012210
5101343440102203310040
61001211013214330552
730345602561314520
oct2717171574430644
9441772664822555
10102202202010020
112a62378a6a0952
12b56757a7b9a58
13450481ac82998
141b34881dc4d80
15bc37a91d8d65
hex5cf3cdf231a4

102202202010020 has 48 divisors (see below), whose sum is σ = 245287110794880. Its totient is φ = 35040494121984.

The previous prime is 102202202010017. The next prime is 102202202010049. The reversal of 102202202010020 is 20010202202201.

It is a super-2 number, since 2×1022022020100202 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 102202202009977 and 102202202010004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16647476 + ... + 21944084.

It is an arithmetic number, because the mean of its divisors is an integer number (5110148141560).

Almost surely, 2102202202010020 is an apocalyptic number.

102202202010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102202202010020 is an abundant number, since it is smaller than the sum of its proper divisors (143084908784860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102202202010020 is a wasteful number, since it uses less digits than its factorization.

102202202010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5434452 (or 5434450 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 102202202010020 its reverse (20010202202201), we get a palindrome (122212404212221).

The spelling of 102202202010020 in words is "one hundred two trillion, two hundred two billion, two hundred two million, ten thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 137827 275654 551308 689135 964789 1378270 1929578 2756540 3859156 4823945 5296609 9647890 10593218 19295780 21186436 26483045 37076263 52966090 74152526 105932180 148305052 185381315 370762630 741525260 730015728643 1460031457286 2920062914572 3650078643215 5110110100501 7300157286430 10220220201002 14600314572860 20440440402004 25550550502505 51101101005010 102202202010020