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10101102220 = 2251151019001
BaseRepresentation
bin10010110100001001…
…01001011010001100
3222001222000011022001
421122010221122030
5131141340232340
64350153402044
7505212644416
oct113204513214
928058004261
1010101102220
114313899670
121b5aa09324
13c4c928881
146bb75d9b6
153e1bce29a
hex25a12968c

10101102220 has 48 divisors (see below), whose sum is σ = 23147814816. Its totient is φ = 3672000000.

The previous prime is 10101102203. The next prime is 10101102269. The reversal of 10101102220 is 2220110101.

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 = 10101102197 and 10101102206.

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, 1117720 + ... + 1126720.

It is an arithmetic number, because the mean of its divisors is an integer number (482246142).

Almost surely, 210101102220 is an apocalyptic number.

10101102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101102220 is an abundant number, since it is smaller than the sum of its proper divisors (13046712596).

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

10101102220 is a wasteful number, since it uses less digits than its factorization.

10101102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14122 (or 14120 counting only the distinct ones).

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

Adding to 10101102220 its reverse (2220110101), we get a palindrome (12321212321).

The spelling of 10101102220 in words is "ten billion, one hundred one million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 5101 9001 10202 18002 20404 25505 36004 45005 51010 56111 90010 99011 102020 112222 180020 198022 224444 280555 396044 495055 561110 990110 1122220 1980220 45914101 91828202 183656404 229570505 459141010 505055111 918282020 1010110222 2020220444 2525275555 5050551110 10101102220