22120220111121 has 32 divisors (see below), whose sum is σ = 35750112768000. Its totient is φ = 13406095725840.

The previous prime is 22120220111111. The next prime is 22120220111131. The reversal of 22120220111121 is 12111102202122.

22120220111121 is a `hidden beast` number, since 2 + 212 + 0 + 220 + 111 + 121 = 666.

It is an interprime number because it is at equal distance from previous prime (22120220111111) and next prime (22120220111131).

It is not a de Polignac number, because 22120220111121 - 2⁷ = 22120220110993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22120220111094 and 22120220111103.

It is not an unprimeable number, because it can be changed into a prime (22120220111111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78804580 + ... + 79084778.

It is an arithmetic number, because the mean of its divisors is an integer number (1117191024000).

Almost surely, 2^{22120220111121} is an apocalyptic number.

It is an amenable number.

22120220111121 is a deficient number, since it is larger than the sum of its proper divisors (13629892656879).

22120220111121 is a wasteful number, since it uses less digits than its factorization.

22120220111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546026 (or 546020 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22120220111121 its reverse (12111102202122), we get a palindrome (34231322313243).

The spelling of 22120220111121 in words is "twenty-two trillion, one hundred twenty billion, two hundred twenty million, one hundred eleven thousand, one hundred twenty-one".