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10121102212 = 2213239814379
BaseRepresentation
bin10010110110100001…
…11100001110000100
3222010100122021010111
421123100330032010
5131212000232322
64352150202404
7505544643424
oct113320741604
928110567114
1010121102212
114324109991
121b65653404
13c53b0bca0
146c0288484
153e3830177
hex25b43c384

10121102212 has 24 divisors (see below), whose sum is σ = 19154217600. Its totient is φ = 4651727136.

The previous prime is 10121102171. The next prime is 10121102227. The reversal of 10121102212 is 21220112101.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 10121102192 and 10121102201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394762 + ... + 419617.

It is an arithmetic number, because the mean of its divisors is an integer number (798092400).

Almost surely, 210121102212 is an apocalyptic number.

It is an amenable number.

10121102212 is a deficient number, since it is larger than the sum of its proper divisors (9033115388).

10121102212 is a wasteful number, since it uses less digits than its factorization.

10121102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814635 (or 814633 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10121102212 its reverse (21220112101), we get a palindrome (31341214313).

The spelling of 10121102212 in words is "ten billion, one hundred twenty-one million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 239 478 956 3107 6214 12428 814379 1628758 3257516 10586927 21173854 42347708 194636581 389273162 778546324 2530275553 5060551106 10121102212