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10012111210 = 251001211121
BaseRepresentation
bin10010101001100010…
…01011000101101010
3221211202112221120201
421110301023011222
5131001100024320
64333254142414
7503052353413
oct112461130552
927752487521
1010012111210
114278637382
121b35051a0a
13c3736ac7a
146ad9d680a
153d8ea170a
hex254c4b16a

10012111210 has 8 divisors (see below), whose sum is σ = 18021800196. Its totient is φ = 4004844480.

The previous prime is 10012111201. The next prime is 10012111211. The reversal of 10012111210 is 1211121001.

It can be written as a sum of positive squares in 2 ways, for example, as 9997800121 + 14311089 = 99989^2 + 3783^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 1001211121 = 10012111210 / (1 + 0 + 0 + 1 + 2 + 1 + 1 + 1 + 2 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (10012111211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500605551 + ... + 500605570.

Almost surely, 210012111210 is an apocalyptic number.

10012111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10012111210 is a deficient number, since it is larger than the sum of its proper divisors (8009688986).

10012111210 is a wasteful number, since it uses less digits than its factorization.

10012111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001211128.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10012111210 its reverse (1211121001), we get a palindrome (11223232211).

The spelling of 10012111210 in words is "ten billion, twelve million, one hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 1001211121 2002422242 5006055605 10012111210