122553022021 has 16 divisors (see below), whose sum is σ = 126762048000. Its totient is φ = 118360281600.

The previous prime is 122553022013. The next prime is 122553022027. The reversal of 122553022021 is 120220355221.

It is not a de Polignac number, because 122553022021 - 2³ = 122553022013 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 (122553022027) 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, 48419526 + ... + 48422056.

It is an arithmetic number, because the mean of its divisors is an integer number (7922628000).

Almost surely, 2^122553022021 is an apocalyptic number.

It is an amenable number.

122553022021 is a deficient number, since it is larger than the sum of its proper divisors (4209025979).

122553022021 is a wasteful number, since it uses less digits than its factorization.

122553022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 122553022021 its reverse (120220355221), we get a palindrome (242773377242).

The spelling of 122553022021 in words is "one hundred twenty-two billion, five hundred fifty-three million, twenty-two thousand, twenty-one".