22121022011011 has 64 divisors (see below), whose sum is σ = 31043059799040. Its totient is φ = 15217182720000.

The previous prime is 22121022011003. The next prime is 22121022011051. The reversal of 22121022011011 is 11011022012122.

It is a cyclic number.

It is not a de Polignac number, because 22121022011011 - 2³ = 22121022011003 is a prime.

It is a super-2 number, since 2×22121022011011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22121022011051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1891150 + ... + 6915091.

It is an arithmetic number, because the mean of its divisors is an integer number (485047809360).

Almost surely, 2^{22121022011011} is an apocalyptic number.

22121022011011 is a deficient number, since it is larger than the sum of its proper divisors (8922037788029).

22121022011011 is a wasteful number, since it uses less digits than its factorization.

22121022011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8806396.

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

Adding to 22121022011011 its reverse (11011022012122), we get a palindrome (33132044023133).

The spelling of 22121022011011 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-two million, eleven thousand, eleven".