22122011121111 has 24 divisors (see below), whose sum is σ = 35147016936720. Its totient is φ = 13407279460080.

The previous prime is 22122011121107. The next prime is 22122011121191. The reversal of 22122011121111 is 11112111022122.

It is a happy number.

22122011121111 is a `hidden beast` number, since 221 + 220 + 1 + 1 + 1 + 211 + 11 = 666.

It is not a de Polignac number, because 22122011121111 - 2² = 22122011121107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122011121191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 923354376 + ... + 923378333.

It is an arithmetic number, because the mean of its divisors is an integer number (1464459039030).

Almost surely, 2^{22122011121111} is an apocalyptic number.

22122011121111 is a deficient number, since it is larger than the sum of its proper divisors (13025005815609).

22122011121111 is a wasteful number, since it uses less digits than its factorization.

22122011121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846732748 (or 1846732723 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 22122011121111 its reverse (11112111022122), we get a palindrome (33234122143233).

The spelling of 22122011121111 in words is "twenty-two trillion, one hundred twenty-two billion, eleven million, one hundred twenty-one thousand, one hundred eleven".