1111211110120 has 64 divisors (see below), whose sum is σ = 2566544713920. Its totient is φ = 432760333824.

The previous prime is 1111211110103. The next prime is 1111211110127. The reversal of 1111211110120 is 210111121111.

It is a self number, because there is not a number n which added to its sum of digits gives 1111211110120.

It is not an unprimeable number, because it can be changed into a prime (1111211110127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493674 + ... + 1570393.

It is an arithmetic number, because the mean of its divisors is an integer number (40102261155).

Almost surely, 2^{1111211110120} is an apocalyptic number.

1111211110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111211110120 is an abundant number, since it is smaller than the sum of its proper divisors (1455333603800).

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

1111211110120 is a wasteful number, since it uses less digits than its factorization.

1111211110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064434 (or 2064430 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1111211110120 its reverse (210111121111), we get a palindrome (1321322231231).

The spelling of 1111211110120 in words is "one trillion, one hundred eleven billion, two hundred eleven million, one hundred ten thousand, one hundred twenty".