202122120200121 has 24 divisors (see below), whose sum is σ = 319817020105440. Its totient is φ = 121989963139200.

The previous prime is 202122120200107. The next prime is 202122120200149. The reversal of 202122120200121 is 121002021221202.

It is a happy number.

202122120200121 is a `hidden beast` number, since 20 + 212 + 212 + 0 + 200 + 1 + 21 = 666.

It is not a de Polignac number, because 202122120200121 - 2⁶ = 202122120200057 is a prime.

It is a super-3 number, since 3×202122120200121³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202122120200094 and 202122120200103.

It is not an unprimeable number, because it can be changed into a prime (202122120200521) 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, 4235738751 + ... + 4235786468.

It is an arithmetic number, because the mean of its divisors is an integer number (13325709171060).

Almost surely, 2^{202122120200121} is an apocalyptic number.

It is an amenable number.

202122120200121 is a deficient number, since it is larger than the sum of its proper divisors (117694899905319).

202122120200121 is a wasteful number, since it uses less digits than its factorization.

202122120200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8471525477 (or 8471525474 counting only the distinct ones).

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

Adding to 202122120200121 its reverse (121002021221202), we get a palindrome (323124141421323).

The spelling of 202122120200121 in words is "two hundred two trillion, one hundred twenty-two billion, one hundred twenty million, two hundred thousand, one hundred twenty-one".