1201157111010 has 32 divisors (see below), whose sum is σ = 2883268676160. Its totient is φ = 320253939648.

The previous prime is 1201157111009. The next prime is 1201157111039. The reversal of 1201157111010 is 101117511021.

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, 3234952 + ... + 3587091.

It is an arithmetic number, because the mean of its divisors is an integer number (90102146130).

Almost surely, 2^{1201157111010} is an apocalyptic number.

1201157111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201157111010 is an abundant number, since it is smaller than the sum of its proper divisors (1682111565150).

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

1201157111010 is a wasteful number, since it uses less digits than its factorization.

1201157111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6827922.

The product of its (nonzero) digits is 70, while the sum is 21.

The spelling of 1201157111010 in words is "one trillion, two hundred one billion, one hundred fifty-seven million, one hundred eleven thousand, ten".