22121102010211 has 4 divisors (see below), whose sum is σ = 22151280867712. Its totient is φ = 22090923152712.

The previous prime is 22121102010187. The next prime is 22121102010251. The reversal of 22121102010211 is 11201020112122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22121102010211 is a prime.

It is a super-2 number, since 2×22121102010211² (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 (22121102010251) 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, 15089427651 + ... + 15089429116.

It is an arithmetic number, because the mean of its divisors is an integer number (5537820216928).

Almost surely, 2^{22121102010211} is an apocalyptic number.

22121102010211 is a deficient number, since it is larger than the sum of its proper divisors (30178857501).

22121102010211 is an equidigital number, since it uses as much as digits as its factorization.

22121102010211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30178857500.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22121102010211 its reverse (11201020112122), we get a palindrome (33322122122333).

The spelling of 22121102010211 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred two million, ten thousand, two hundred eleven".