11331321022021 has 64 divisors (see below), whose sum is σ = 16437784204800. Its totient is φ = 7670964833280.

The previous prime is 11331321021989. The next prime is 11331321022061. The reversal of 11331321022021 is 12022012313311.

It is not a de Polignac number, because 11331321022021 - 2⁵ = 11331321021989 is a prime.

It is a super-2 number, since 2×11331321022021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11331321021983 and 11331321022001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331321022061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5960886 + ... + 7628551.

It is an arithmetic number, because the mean of its divisors is an integer number (256840378200).

Almost surely, 2^{11331321022021} is an apocalyptic number.

11331321022021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11331321022021 is a deficient number, since it is larger than the sum of its proper divisors (5106463182779).

11331321022021 is a wasteful number, since it uses less digits than its factorization.

11331321022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13589499 (or 13589485 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 11331321022021 its reverse (12022012313311), we get a palindrome (23353333335332).

The spelling of 11331321022021 in words is "eleven trillion, three hundred thirty-one billion, three hundred twenty-one million, twenty-two thousand, twenty-one".