202202101220121 has 24 divisors (see below), whose sum is σ = 293906826416736. Its totient is φ = 133953752021760.

The previous prime is 202202101220099. The next prime is 202202101220123. The reversal of 202202101220121 is 121022101202202.

It is a happy number.

202202101220121 is a `hidden beast` number, since 2 + 0 + 220 + 2 + 101 + 220 + 121 = 666.

It is not a de Polignac number, because 202202101220121 - 2²⁷ = 202201967002393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202202101220094 and 202202101220103.

It is not an unprimeable number, because it can be changed into a prime (202202101220123) 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, 1095000 + ... + 20139593.

It is an arithmetic number, because the mean of its divisors is an integer number (12246117767364).

Almost surely, 2^{202202101220121} is an apocalyptic number.

It is an amenable number.

202202101220121 is a deficient number, since it is larger than the sum of its proper divisors (91704725196615).

202202101220121 is a wasteful number, since it uses less digits than its factorization.

202202101220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21241253 (or 21241250 counting only the distinct ones).

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

Adding to 202202101220121 its reverse (121022101202202), we get a palindrome (323224202422323).

The spelling of 202202101220121 in words is "two hundred two trillion, two hundred two billion, one hundred one million, two hundred twenty thousand, one hundred twenty-one".