11111001121010 has 64 divisors (see below), whose sum is σ = 23656935064320. Its totient is φ = 3676281342720.

The previous prime is 11111001120997. The next prime is 11111001121027. The reversal of 11111001121010 is 1012110011111.

It is a happy number.

11111001121010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11111001121010² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11111001120982 and 11111001121000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2683505 + ... + 5424315.

It is an arithmetic number, because the mean of its divisors is an integer number (369639610380).

Almost surely, 2^{11111001121010} is an apocalyptic number.

11111001121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111001121010 is an abundant number, since it is smaller than the sum of its proper divisors (12545933943310).

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

11111001121010 is a wasteful number, since it uses less digits than its factorization.

11111001121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742851.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11111001121010 its reverse (1012110011111), we get a palindrome (12123111132121).

The spelling of 11111001121010 in words is "eleven trillion, one hundred eleven billion, one million, one hundred twenty-one thousand, ten".