22011220122211 has 16 divisors (see below), whose sum is σ = 23323230701568. Its totient is φ = 20738966414400.

The previous prime is 22011220122119. The next prime is 22011220122239. The reversal of 22011220122211 is 11222102211022.

It is a cyclic number.

It is not a de Polignac number, because 22011220122211 - 2⁷ = 22011220122083 is a prime.

It is a super-2 number, since 2×22011220122211² (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 (22011220122251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17161345 + ... + 18399298.

It is an arithmetic number, because the mean of its divisors is an integer number (1457701918848).

Almost surely, 2^{22011220122211} is an apocalyptic number.

22011220122211 is a deficient number, since it is larger than the sum of its proper divisors (1312010579357).

22011220122211 is a wasteful number, since it uses less digits than its factorization.

22011220122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35561202.

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

Adding to 22011220122211 its reverse (11222102211022), we get a palindrome (33233322333233).

The spelling of 22011220122211 in words is "twenty-two trillion, eleven billion, two hundred twenty million, one hundred twenty-two thousand, two hundred eleven".