202022221012121 has 8 divisors (see below), whose sum is σ = 204578360517504. Its totient is φ = 199476981889200.

The previous prime is 202022221012109. The next prime is 202022221012153. The reversal of 202022221012121 is 121210122220202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202022221012121 - 2¹⁰ = 202022221011097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202022221012093 and 202022221012102.

It is not an unprimeable number, because it can be changed into a prime (202022221012181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2725058315 + ... + 2725132448.

It is an arithmetic number, because the mean of its divisors is an integer number (25572295064688).

Almost surely, 2^{202022221012121} is an apocalyptic number.

It is an amenable number.

202022221012121 is a deficient number, since it is larger than the sum of its proper divisors (2556139505383).

202022221012121 is a wasteful number, since it uses less digits than its factorization.

202022221012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450191231.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202022221012121 its reverse (121210122220202), we get a palindrome (323232343232323).

The spelling of 202022221012121 in words is "two hundred two trillion, twenty-two billion, two hundred twenty-one million, twelve thousand, one hundred twenty-one".