10012215671172 has 192 divisors, whose sum is σ = 30504193440000. Its totient is φ = 2799834024960.

The previous prime is 10012215671137. The next prime is 10012215671231. The reversal of 10012215671172 is 27117651221001.

It is a happy number.

10012215671172 is a `hidden beast` number, since 1 + 0 + 0 + 1 + 2 + 21 + 567 + 1 + 1 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56080704 + ... + 56258952.

It is an arithmetic number, because the mean of its divisors is an integer number (158876007500).

Almost surely, 2^{10012215671172} is an apocalyptic number.

10012215671172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10012215671172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15252096720000).

10012215671172 is an abundant number, since it is smaller than the sum of its proper divisors (20491977768828).

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

10012215671172 is a wasteful number, since it uses less digits than its factorization.

10012215671172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181923 (or 181915 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 36.

Adding to 10012215671172 its reverse (27117651221001), we get a palindrome (37129866892173).

The spelling of 10012215671172 in words is "ten trillion, twelve billion, two hundred fifteen million, six hundred seventy-one thousand, one hundred seventy-two".