122021022221021 has 64 divisors (see below), whose sum is σ = 156568342265856. Its totient is φ = 92318326214400.

The previous prime is 122021022221009. The next prime is 122021022221023. The reversal of 122021022221021 is 120122220120221.

It is not a de Polignac number, because 122021022221021 - 2²² = 122021018026717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122021022220984 and 122021022221002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021022221023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3433035776 + ... + 3433071318.

It is an arithmetic number, because the mean of its divisors is an integer number (2446380347904).

Almost surely, 2^{122021022221021} is an apocalyptic number.

122021022221021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122021022221021 is a deficient number, since it is larger than the sum of its proper divisors (34547320044835).

122021022221021 is a wasteful number, since it uses less digits than its factorization.

122021022221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38082.

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

Adding to 122021022221021 its reverse (120122220120221), we get a palindrome (242143242341242).

The spelling of 122021022221021 in words is "one hundred twenty-two trillion, twenty-one billion, twenty-two million, two hundred twenty-one thousand, twenty-one".