22222101012211 has 4 divisors (see below), whose sum is σ = 23529283424712. Its totient is φ = 20914918599712.

The previous prime is 22222101012193. The next prime is 22222101012277. The reversal of 22222101012211 is 11221010122222.

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 22222101012211 - 2²¹ = 22222098915059 is a prime.

It is a super-2 number, since 2×22222101012211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22222101012911) 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, 653591206225 + ... + 653591206258.

It is an arithmetic number, because the mean of its divisors is an integer number (5882320856178).

Almost surely, 2^{22222101012211} is an apocalyptic number.

22222101012211 is a deficient number, since it is larger than the sum of its proper divisors (1307182412501).

22222101012211 is a wasteful number, since it uses less digits than its factorization.

22222101012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307182412500.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22222101012211 its reverse (11221010122222), we get a palindrome (33443111134433).

The spelling of 22222101012211 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred one million, twelve thousand, two hundred eleven".