11331021130212 has 72 divisors (see below), whose sum is σ = 31747745890560. Its totient is φ = 3133001229120.

The previous prime is 11331021130159. The next prime is 11331021130277. The reversal of 11331021130212 is 21203112013311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310795387 + ... + 310831842.

Almost surely, 2^{11331021130212} is an apocalyptic number.

11331021130212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11331021130212 is an abundant number, since it is smaller than the sum of its proper divisors (20416724760348).

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

11331021130212 is a wasteful number, since it uses less digits than its factorization.

11331021130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621627281 (or 621627272 counting only the distinct ones).

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

Adding to 11331021130212 its reverse (21203112013311), we get a palindrome (32534133143523).

The spelling of 11331021130212 in words is "eleven trillion, three hundred thirty-one billion, twenty-one million, one hundred thirty thousand, two hundred twelve".