22012120220011 has 4 divisors (see below), whose sum is σ = 22123856871072. Its totient is φ = 21900383568952.

The previous prime is 22012120219939. The next prime is 22012120220017. The reversal of 22012120220011 is 11002202121022.

It is a happy number.

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 22012120220011 - 2⁷ = 22012120219883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012120220017) 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, 55868325235 + ... + 55868325628.

It is an arithmetic number, because the mean of its divisors is an integer number (5530964217768).

Almost surely, 2^{22012120220011} is an apocalyptic number.

22012120220011 is a deficient number, since it is larger than the sum of its proper divisors (111736651061).

22012120220011 is a wasteful number, since it uses less digits than its factorization.

22012120220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111736651060.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22012120220011 its reverse (11002202121022), we get a palindrome (33014322341033).

The spelling of 22012120220011 in words is "twenty-two trillion, twelve billion, one hundred twenty million, two hundred twenty thousand, eleven".