111022122120121 has 4 divisors (see below), whose sum is σ = 113604031936912. Its totient is φ = 108440212303332.

The previous prime is 111022122120109. The next prime is 111022122120127. The reversal of 111022122120121 is 121021221220111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111022122120121 - 2⁹ = 111022122119609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111022122120127) 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, 1290954908331 + ... + 1290954908416.

It is an arithmetic number, because the mean of its divisors is an integer number (28401007984228).

Almost surely, 2^{111022122120121} is an apocalyptic number.

It is an amenable number.

111022122120121 is a deficient number, since it is larger than the sum of its proper divisors (2581909816791).

111022122120121 is an equidigital number, since it uses as much as digits as its factorization.

111022122120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581909816790.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111022122120121 its reverse (121021221220111), we get a palindrome (232043343340232).

The spelling of 111022122120121 in words is "one hundred eleven trillion, twenty-two billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twenty-one".