122012120221 has 16 divisors (see below), whose sum is σ = 122993640000. Its totient is φ = 121036048128.

The previous prime is 122012120213. The next prime is 122012120249. The reversal of 122012120221 is 122021210221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122012120221 - 2³ = 122012120213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122012120195 and 122012120204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012120821) 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, 71813230 + ... + 71814928.

It is an arithmetic number, because the mean of its divisors is an integer number (7687102500).

Almost surely, 2^122012120221 is an apocalyptic number.

It is an amenable number.

122012120221 is a deficient number, since it is larger than the sum of its proper divisors (981519779).

122012120221 is a wasteful number, since it uses less digits than its factorization.

122012120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988.

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

Adding to 122012120221 its reverse (122021210221), we get a palindrome (244033330442).

The spelling of 122012120221 in words is "one hundred twenty-two billion, twelve million, one hundred twenty thousand, two hundred twenty-one".