1211133131202 has 16 divisors (see below), whose sum is σ = 2422294725312. Its totient is φ = 403706299920.

The previous prime is 1211133131183. The next prime is 1211133131207. The reversal of 1211133131202 is 2021313311121.

It is a super-2 number, since 2×1211133131202² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1211133131207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611374 + ... + 1672137.

It is an arithmetic number, because the mean of its divisors is an integer number (151393420332).

Almost surely, 2^{1211133131202} is an apocalyptic number.

1211133131202 is an abundant number, since it is smaller than the sum of its proper divisors (1211161594110).

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

1211133131202 is a wasteful number, since it uses less digits than its factorization.

1211133131202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371913.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1211133131202 its reverse (2021313311121), we get a palindrome (3232446442323).

The spelling of 1211133131202 in words is "one trillion, two hundred eleven billion, one hundred thirty-three million, one hundred thirty-one thousand, two hundred two".