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10012222231 = 118910226989
BaseRepresentation
bin10010101001100011…
…00110001100010111
3221211202202120212121
421110301212030113
5131001112102411
64333300400411
7503053325164
oct112461461427
927752676777
1010012222231
114278702830
121b350a6107
13c373a966b
146ada2506b
153d8ec4571
hex254c66317

10012222231 has 8 divisors (see below), whose sum is σ = 11045149200. Its totient is φ = 8999749440.

The previous prime is 10012222229. The next prime is 10012222243. The reversal of 10012222231 is 13222221001.

It is a happy number.

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

It is not a de Polignac number, because 10012222231 - 21 = 10012222229 is a prime.

It is a super-2 number, since 2×100122222312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012222271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5112516 + ... + 5114473.

It is an arithmetic number, because the mean of its divisors is an integer number (1380643650).

Almost surely, 210012222231 is an apocalyptic number.

10012222231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10012222231 is a deficient number, since it is larger than the sum of its proper divisors (1032926969).

10012222231 is a wasteful number, since it uses less digits than its factorization.

10012222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10227089.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10012222231 its reverse (13222221001), we get a palindrome (23234443232).

The spelling of 10012222231 in words is "ten billion, twelve million, two hundred twenty-two thousand, two hundred thirty-one".

Divisors: 1 11 89 979 10226989 112496879 910202021 10012222231