202220200121 has 12 divisors (see below), whose sum is σ = 212983539600. Its totient is φ = 191937769968.

The previous prime is 202220200111. The next prime is 202220200129. The reversal of 202220200121 is 121002022202.

It is a de Polignac number, because none of the positive numbers 2^k-202220200121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202220200096 and 202220200105.

It is not an unprimeable number, because it can be changed into a prime (202220200129) 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, 1988111 + ... + 2087348.

It is an arithmetic number, because the mean of its divisors is an integer number (17748628300).

Almost surely, 2^202220200121 is an apocalyptic number.

It is an amenable number.

202220200121 is a deficient number, since it is larger than the sum of its proper divisors (10763339479).

202220200121 is an equidigital number, since it uses as much as digits as its factorization.

202220200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075576 (or 4075547 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202220200121 its reverse (121002022202), we get a palindrome (323222222323).

The spelling of 202220200121 in words is "two hundred two billion, two hundred twenty million, two hundred thousand, one hundred twenty-one".