202201110122021 has 4 divisors (see below), whose sum is σ = 202201185034944. Its totient is φ = 202201035209100.

The previous prime is 202201110121999. The next prime is 202201110122047. The reversal of 202201110122021 is 120221011102202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202201110122021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202201110142021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33250295 + ... + 38858516.

It is an arithmetic number, because the mean of its divisors is an integer number (50550296258736).

Almost surely, 2^{202201110122021} is an apocalyptic number.

It is an amenable number.

202201110122021 is a deficient number, since it is larger than the sum of its proper divisors (74912923).

202201110122021 is an equidigital number, since it uses as much as digits as its factorization.

202201110122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74912922.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202201110122021 its reverse (120221011102202), we get a palindrome (322422121224223).

The spelling of 202201110122021 in words is "two hundred two trillion, two hundred one billion, one hundred ten million, one hundred twenty-two thousand, twenty-one".