122020102220021 has 16 divisors (see below), whose sum is σ = 130199013921600. Its totient is φ = 114026144070528.

The previous prime is 122020102220011. The next prime is 122020102220057. The reversal of 122020102220021 is 120022201020221.

It is a happy number.

It is not a de Polignac number, because 122020102220021 - 2⁶ = 122020102219957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020102220011) 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, 128324006 + ... + 129271383.

It is an arithmetic number, because the mean of its divisors is an integer number (8137438370100).

Almost surely, 2^{122020102220021} is an apocalyptic number.

It is an amenable number.

122020102220021 is a deficient number, since it is larger than the sum of its proper divisors (8178911701579).

122020102220021 is a wasteful number, since it uses less digits than its factorization.

122020102220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257595748.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122020102220021 its reverse (120022201020221), we get a palindrome (242042303240242).

The spelling of 122020102220021 in words is "one hundred twenty-two trillion, twenty billion, one hundred two million, two hundred twenty thousand, twenty-one".