122012002221221 has 32 divisors (see below), whose sum is σ = 143438990227200. Its totient is φ = 101626095707136.

The previous prime is 122012002221169. The next prime is 122012002221247. The reversal of 122012002221221 is 122122200210221.

It is not a de Polignac number, because 122012002221221 - 2⁶ = 122012002221157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122012002221193 and 122012002221202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012002221281) 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, 16001405 + ... + 22362221.

It is an arithmetic number, because the mean of its divisors is an integer number (4482468444600).

Almost surely, 2^{122012002221221} is an apocalyptic number.

It is an amenable number.

122012002221221 is a deficient number, since it is larger than the sum of its proper divisors (21426988005979).

122012002221221 is a wasteful number, since it uses less digits than its factorization.

122012002221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6361373.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122012002221221 its reverse (122122200210221), we get a palindrome (244134202431442).

The spelling of 122012002221221 in words is "one hundred twenty-two trillion, twelve billion, two million, two hundred twenty-one thousand, two hundred twenty-one".