11221212211031 has 8 divisors (see below), whose sum is σ = 11352544387200. Its totient is φ = 11089996727040.

The previous prime is 11221212210913. The next prime is 11221212211057. The reversal of 11221212211031 is 13011221212211.

11221212211031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11221212211031 - 2²² = 11221208016727 is a prime.

It is a super-2 number, since 2×11221212211031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11221212210994 and 11221212211012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221212211091) 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, 28979591 + ... + 29364248.

It is an arithmetic number, because the mean of its divisors is an integer number (1419068048400).

Almost surely, 2^{11221212211031} is an apocalyptic number.

11221212211031 is a deficient number, since it is larger than the sum of its proper divisors (131332176169).

11221212211031 is an equidigital number, since it uses as much as digits as its factorization.

11221212211031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58346089.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11221212211031 its reverse (13011221212211), we get a palindrome (24232433423242).

The spelling of 11221212211031 in words is "eleven trillion, two hundred twenty-one billion, two hundred twelve million, two hundred eleven thousand, thirty-one".