121021220022201 has 24 divisors (see below), whose sum is σ = 177420181882944. Its totient is φ = 79475425175520.

The previous prime is 121021220022187. The next prime is 121021220022221. The reversal of 121021220022201 is 102220022120121.

It is a happy number.

121021220022201 is a `hidden beast` number, since 1 + 210 + 212 + 20 + 0 + 2 + 220 + 1 = 666.

It is not a de Polignac number, because 121021220022201 - 2⁵ = 121021220022169 is a prime.

It is a super-2 number, since 2×121021220022201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121021220022221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39482671 + ... + 42437291.

It is an arithmetic number, because the mean of its divisors is an integer number (7392507578456).

Almost surely, 2^{121021220022201} is an apocalyptic number.

It is an amenable number.

121021220022201 is a deficient number, since it is larger than the sum of its proper divisors (56398961860743).

121021220022201 is a wasteful number, since it uses less digits than its factorization.

121021220022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022621 (or 3022618 counting only the distinct ones).

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

Adding to 121021220022201 its reverse (102220022120121), we get a palindrome (223241242142322).

The spelling of 121021220022201 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred twenty million, twenty-two thousand, two hundred one".