22111112012011 has 4 divisors (see below), whose sum is σ = 24121213104024. Its totient is φ = 20101010920000.

The previous prime is 22111112011973. The next prime is 22111112012021. The reversal of 22111112012011 is 11021021111122.

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

It is a cyclic number.

It is not a de Polignac number, because 22111112012011 - 2²³ = 22111103623403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111112012021) 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, 1005050545990 + ... + 1005050546011.

It is an arithmetic number, because the mean of its divisors is an integer number (6030303276006).

Almost surely, 2^{22111112012011} is an apocalyptic number.

22111112012011 is a deficient number, since it is larger than the sum of its proper divisors (2010101092013).

22111112012011 is a wasteful number, since it uses less digits than its factorization.

22111112012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010101092012.

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

Adding to 22111112012011 its reverse (11021021111122), we get a palindrome (33132133123133).

The spelling of 22111112012011 in words is "twenty-two trillion, one hundred eleven billion, one hundred twelve million, twelve thousand, eleven".