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122220102020 = 225101239253159
BaseRepresentation
bin111000111010011100…
…0101100000110000100
3102200110201200110221012
41301310320230012010
54000301321231040
6132051440541352
711554504504022
oct1616470540604
9380421613835
10122220102020
1147919074685
121b82b321858
13b6aa1366c3
145cb6137712
1532a4d43865
hex1c74e2c184

122220102020 has 48 divisors (see below), whose sum is σ = 260288985600. Its totient is φ = 48201283200.

The previous prime is 122220102019. The next prime is 122220102049. The reversal of 122220102020 is 20201022221.

It is a junction number, because it is equal to n+sod(n) for n = 122220101986 and 122220102004.

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, 356201 + ... + 609359.

It is an arithmetic number, because the mean of its divisors is an integer number (5422687200).

Almost surely, 2122220102020 is an apocalyptic number.

122220102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122220102020 is an abundant number, since it is smaller than the sum of its proper divisors (138068883580).

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

122220102020 is a wasteful number, since it uses less digits than its factorization.

122220102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253508 (or 253506 counting only the distinct ones).

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

Adding to 122220102020 its reverse (20201022221), we get a palindrome (142421124241).

The spelling of 122220102020 in words is "one hundred twenty-two billion, two hundred twenty million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 101 202 239 404 478 505 956 1010 1195 2020 2390 4780 24139 48278 96556 120695 241390 253159 482780 506318 1012636 1265795 2531590 5063180 25569059 51138118 60505001 102276236 121010002 127845295 242020004 255690590 302525005 511381180 605050010 1210100020 6111005101 12222010202 24444020404 30555025505 61110051010 122220102020