121202011122021 has 12 divisors (see below), whose sum is σ = 175070181673920. Its totient is φ = 80801059185000.

The previous prime is 121202011122013. The next prime is 121202011122061. The reversal of 121202011122021 is 120221110202121.

121202011122021 is a `hidden beast` number, since 1 + 212 + 0 + 201 + 11 + 220 + 21 = 666.

It is not a de Polignac number, because 121202011122021 - 2³ = 121202011122013 is a prime.

It is a super-2 number, since 2×121202011122021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121202011121985 and 121202011122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202011122061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20720451 + ... + 25917968.

It is an arithmetic number, because the mean of its divisors is an integer number (14589181806160).

Almost surely, 2^{121202011122021} is an apocalyptic number.

It is an amenable number.

121202011122021 is a deficient number, since it is larger than the sum of its proper divisors (53868170551899).

121202011122021 is a wasteful number, since it uses less digits than its factorization.

121202011122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46927176 (or 46927173 counting only the distinct ones).

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

Adding to 121202011122021 its reverse (120221110202121), we get a palindrome (241423121324142).

The spelling of 121202011122021 in words is "one hundred twenty-one trillion, two hundred two billion, eleven million, one hundred twenty-two thousand, twenty-one".