10111111121010 has 32 divisors (see below), whose sum is σ = 24286379749632. Its totient is φ = 2694105959040.

The previous prime is 10111111120991. The next prime is 10111111121039. The reversal of 10111111121010 is 1012111111101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136858699 + ... + 136932558.

It is an arithmetic number, because the mean of its divisors is an integer number (758949367176).

Almost surely, 2^{10111111121010} is an apocalyptic number.

10111111121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10111111121010 is an abundant number, since it is smaller than the sum of its proper divisors (14175268628622).

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

10111111121010 is a wasteful number, since it uses less digits than its factorization.

10111111121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273792498.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 10111111121010 its reverse (1012111111101), we get a palindrome (11123222232111).

Subtracting from 10111111121010 its reverse (1012111111101), we obtain a palindrome (9099000009909).

The spelling of 10111111121010 in words is "ten trillion, one hundred eleven billion, one hundred eleven million, one hundred twenty-one thousand, ten".