202222020121 has 16 divisors (see below), whose sum is σ = 221594791680. Its totient is φ = 183014536320.

The previous prime is 202222020109. The next prime is 202222020137. The reversal of 202222020121 is 121020222202.

It is not a de Polignac number, because 202222020121 - 2¹⁵ = 202221987353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202222020095 and 202222020104.

It is not an unprimeable number, because it can be changed into a prime (202222020151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10751101 + ... + 10769893.

It is an arithmetic number, because the mean of its divisors is an integer number (13849674480).

Almost surely, 2^202222020121 is an apocalyptic number.

It is an amenable number.

202222020121 is a deficient number, since it is larger than the sum of its proper divisors (19372771559).

202222020121 is a wasteful number, since it uses less digits than its factorization.

202222020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23136.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 202222020121 its reverse (121020222202), we get a palindrome (323242242323).

The spelling of 202222020121 in words is "two hundred two billion, two hundred twenty-two million, twenty thousand, one hundred twenty-one".