11122170331 has 4 divisors (see below), whose sum is σ = 11122807600. Its totient is φ = 11121533064.

The previous prime is 11122170317. The next prime is 11122170337. The reversal of 11122170331 is 13307122111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13307122111 = 22159 ⋅600529.

It is a cyclic number.

It is not a de Polignac number, because 11122170331 - 2⁹ = 11122169819 is a prime.

It is a super-2 number, since 2×11122170331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11122170337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291696 + ... + 327613.

It is an arithmetic number, because the mean of its divisors is an integer number (2780701900).

Almost surely, 2^11122170331 is an apocalyptic number.

11122170331 is a deficient number, since it is larger than the sum of its proper divisors (637269).

11122170331 is an equidigital number, since it uses as much as digits as its factorization.

11122170331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637268.

The product of its (nonzero) digits is 252, while the sum is 22.

Adding to 11122170331 its reverse (13307122111), we get a palindrome (24429292442).

The spelling of 11122170331 in words is "eleven billion, one hundred twenty-two million, one hundred seventy thousand, three hundred thirty-one".