22011000211211 has 16 divisors (see below), whose sum is σ = 24220024565760. Its totient is φ = 19836893371680.

The previous prime is 22011000211157. The next prime is 22011000211297. The reversal of 22011000211211 is 11211200011022.

It is a de Polignac number, because none of the positive numbers 2^k-22011000211211 is a prime.

It is a super-2 number, since 2×22011000211211² (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 (22011000211111) 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, 4385141 + ... + 7953078.

It is an arithmetic number, because the mean of its divisors is an integer number (1513751535360).

Almost surely, 2^{22011000211211} is an apocalyptic number.

22011000211211 is a deficient number, since it is larger than the sum of its proper divisors (2209024354549).

22011000211211 is a wasteful number, since it uses less digits than its factorization.

22011000211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12339634.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22011000211211 its reverse (11211200011022), we get a palindrome (33222200222233).

The spelling of 22011000211211 in words is "twenty-two trillion, eleven billion, two hundred eleven thousand, two hundred eleven".