10012111998 has 64 divisors (see below), whose sum is σ = 23130593280. Its totient is φ = 2830044672.

The previous prime is 10012111979. The next prime is 10012112003. The reversal of 10012111998 is 89911121001.

10012111998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1572790 + ... + 1579142.

It is an arithmetic number, because the mean of its divisors is an integer number (361415520).

Almost surely, 2^10012111998 is an apocalyptic number.

10012111998 is an abundant number, since it is smaller than the sum of its proper divisors (13118481282).

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

10012111998 is a wasteful number, since it uses less digits than its factorization.

10012111998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6761.

The product of its (nonzero) digits is 1296, while the sum is 33.

Adding to 10012111998 its reverse (89911121001), we get a palindrome (99923232999).

The spelling of 10012111998 in words is "ten billion, twelve million, one hundred eleven thousand, nine hundred ninety-eight".