22112212221211 has 32 divisors (see below), whose sum is σ = 26475233015808. Its totient is φ = 18056862109440.

The previous prime is 22112212221163. The next prime is 22112212221241. The reversal of 22112212221211 is 11212221221122.

It is not a de Polignac number, because 22112212221211 - 2³⁵ = 22077852482843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22112212221241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117329746 + ... + 117518056.

It is an arithmetic number, because the mean of its divisors is an integer number (827351031744).

Almost surely, 2^{22112212221211} is an apocalyptic number.

22112212221211 is a deficient number, since it is larger than the sum of its proper divisors (4363020794597).

22112212221211 is a wasteful number, since it uses less digits than its factorization.

22112212221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191251.

The product of its digits is 256, while the sum is 22.

Adding to 22112212221211 its reverse (11212221221122), we get a palindrome (33324433442333).

The spelling of 22112212221211 in words is "twenty-two trillion, one hundred twelve billion, two hundred twelve million, two hundred twenty-one thousand, two hundred eleven".