202022113 has 4 divisors (see below), whose sum is σ = 202279600. Its totient is φ = 201764628.

The previous prime is 202022111. The next prime is 202022141. The reversal of 202022113 is 311220202.

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, and also an emirpimes, since its reverse is a distinct semiprime: 311220202 = 2 ⋅155610101.

It is a cyclic number.

It is not a de Polignac number, because 202022113 - 2¹ = 202022111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202022093 and 202022102.

It is not an unprimeable number, because it can be changed into a prime (202022111) 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, 127563 + ... + 129136.

It is an arithmetic number, because the mean of its divisors is an integer number (50569900).

Almost surely, 2^202022113 is an apocalyptic number.

It is an amenable number.

202022113 is a deficient number, since it is larger than the sum of its proper divisors (257487).

202022113 is an equidigital number, since it uses as much as digits as its factorization.

202022113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257486.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 202022113 is about 14213.4483148883. The cubic root of 202022113 is about 586.7678404984.

Adding to 202022113 its reverse (311220202), we get a palindrome (513242315).

The spelling of 202022113 in words is "two hundred two million, twenty-two thousand, one hundred thirteen".