122021002220121 has 16 divisors (see below), whose sum is σ = 184182644862720. Its totient is φ = 79812479438640.

The previous prime is 122021002220087. The next prime is 122021002220123. The reversal of 122021002220121 is 121022200120221.

It is a happy number.

122021002220121 is a `hidden beast` number, since 1 + 220 + 2 + 100 + 2 + 220 + 121 = 666.

It is not a de Polignac number, because 122021002220121 - 2⁶ = 122021002220057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122021002220094 and 122021002220103.

It is not an unprimeable number, because it can be changed into a prime (122021002220123) 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, 42634870065 + ... + 42634872926.

It is an arithmetic number, because the mean of its divisors is an integer number (11511415303920).

Almost surely, 2^{122021002220121} is an apocalyptic number.

It is an amenable number.

122021002220121 is a deficient number, since it is larger than the sum of its proper divisors (62161642642599).

122021002220121 is an equidigital number, since it uses as much as digits as its factorization.

122021002220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85269743053 (or 85269743047 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122021002220121 its reverse (121022200120221), we get a palindrome (243043202340342).

The spelling of 122021002220121 in words is "one hundred twenty-two trillion, twenty-one billion, two million, two hundred twenty thousand, one hundred twenty-one".