122020112021 has 16 divisors (see below), whose sum is σ = 130904188800. Its totient is φ = 113403240000.

The previous prime is 122020111979. The next prime is 122020112023. The reversal of 122020112021 is 120211020221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122020112021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122020111987 and 122020112005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020112023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82505 + ... + 500846.

It is an arithmetic number, because the mean of its divisors is an integer number (8181511800).

Almost surely, 2^122020112021 is an apocalyptic number.

It is an amenable number.

122020112021 is a deficient number, since it is larger than the sum of its proper divisors (8884076779).

122020112021 is a wasteful number, since it uses less digits than its factorization.

122020112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583580.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122020112021 its reverse (120211020221), we get a palindrome (242231132242).

The spelling of 122020112021 in words is "one hundred twenty-two billion, twenty million, one hundred twelve thousand, twenty-one".