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101012010220 = 22511673682237
BaseRepresentation
bin101111000010011001…
…0001111010011101100
3100122201200220210021201
41132010302033103230
53123333033311340
6114223153535244
710204112630422
oct1360462172354
9318650823251
10101012010220
1139925712390
12176b0874524
1396aa393464
144c63617112
152962ede79a
hex1784c8f4ec

101012010220 has 48 divisors (see below), whose sum is σ = 231753519648. Its totient is φ = 36677007360.

The previous prime is 101012010107. The next prime is 101012010241. The reversal of 101012010220 is 22010210101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 101012010197 and 101012010206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193059 + ... + 489178.

It is an arithmetic number, because the mean of its divisors is an integer number (4828198326).

Almost surely, 2101012010220 is an apocalyptic number.

101012010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101012010220 is an abundant number, since it is smaller than the sum of its proper divisors (130741509428).

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

101012010220 is a wasteful number, since it uses less digits than its factorization.

101012010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682930 (or 682928 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101012010220 its reverse (22010210101), we get a palindrome (123022220321).

The spelling of 101012010220 in words is "one hundred one billion, twelve million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 673 1346 2692 3365 6730 7403 13460 14806 29612 37015 74030 148060 682237 1364474 2728948 3411185 6822370 7504607 13644740 15009214 30018428 37523035 75046070 150092140 459145501 918291002 1836582004 2295727505 4591455010 5050600511 9182910020 10101201022 20202402044 25253002555 50506005110 101012010220