11222120331 has 12 divisors (see below), whose sum is σ = 16217435520. Its totient is φ = 7477856880.

The previous prime is 11222120297. The next prime is 11222120341. The reversal of 11222120331 is 13302122211.

11222120331 is a `hidden beast` number, since 1 + 122 + 212 + 0 + 331 = 666.

It is not a de Polignac number, because 11222120331 - 2¹¹ = 11222118283 is a prime.

It is a super-2 number, since 2×11222120331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11222120341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276336 + ... + 314333.

It is an arithmetic number, because the mean of its divisors is an integer number (1351452960).

Almost surely, 2^11222120331 is an apocalyptic number.

11222120331 is a deficient number, since it is larger than the sum of its proper divisors (4995315189).

11222120331 is a wasteful number, since it uses less digits than its factorization.

11222120331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592786 (or 592783 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11222120331 its reverse (13302122211), we get a palindrome (24524242542).

The spelling of 11222120331 in words is "eleven billion, two hundred twenty-two million, one hundred twenty thousand, three hundred thirty-one".