22112031021211 has 4 divisors (see below), whose sum is σ = 22112328488152. Its totient is φ = 22111733554272.

The previous prime is 22112031021167. The next prime is 22112031021217. The reversal of 22112031021211 is 11212013021122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22112031021211 - 2³¹ = 22109883537563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22112031021217) 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, 148621941 + ... + 148770646.

It is an arithmetic number, because the mean of its divisors is an integer number (5528082122038).

Almost surely, 2^{22112031021211} is an apocalyptic number.

22112031021211 is a deficient number, since it is larger than the sum of its proper divisors (297466941).

22112031021211 is an equidigital number, since it uses as much as digits as its factorization.

22112031021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297466940.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 22112031021211 its reverse (11212013021122), we get a palindrome (33324044042333).

The spelling of 22112031021211 in words is "twenty-two trillion, one hundred twelve billion, thirty-one million, twenty-one thousand, two hundred eleven".