122210012121021 has 40 divisors (see below), whose sum is σ = 210872177803584. Its totient is φ = 69709810826880.

The previous prime is 122210012121011. The next prime is 122210012121031. The reversal of 122210012121021 is 120121210012221.

122210012121021 is a `hidden beast` number, since 122 + 210 + 0 + 121 + 210 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (122210012121011) and next prime (122210012121031).

It is not a de Polignac number, because 122210012121021 - 2⁷ = 122210012120893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122210012120985 and 122210012121003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122210012121011) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4034117425 + ... + 4034147718.

Almost surely, 2^{122210012121021} is an apocalyptic number.

122210012121021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122210012121021 is a deficient number, since it is larger than the sum of its proper divisors (88662165682563).

122210012121021 is a wasteful number, since it uses less digits than its factorization.

122210012121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8068265183 (or 8068265174 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 122210012121021 its reverse (120121210012221), we get a palindrome (242331222133242).

The spelling of 122210012121021 in words is "one hundred twenty-two trillion, two hundred ten billion, twelve million, one hundred twenty-one thousand, twenty-one".