122002122021 has 32 divisors (see below), whose sum is σ = 185632368768. Its totient is φ = 70606632960.

The previous prime is 122002121897. The next prime is 122002122049. The reversal of 122002122021 is 120221200221.

It is not a de Polignac number, because 122002122021 - 2¹⁷ = 122001990949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002122071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 784665 + ... + 927201.

It is an arithmetic number, because the mean of its divisors is an integer number (5801011524).

Almost surely, 2^122002122021 is an apocalyptic number.

It is an amenable number.

122002122021 is a deficient number, since it is larger than the sum of its proper divisors (63630246747).

122002122021 is a wasteful number, since it uses less digits than its factorization.

122002122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143861.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122002122021 its reverse (120221200221), we get a palindrome (242223322242).

The spelling of 122002122021 in words is "one hundred twenty-two billion, two million, one hundred twenty-two thousand, twenty-one".