2202020145 has 48 divisors (see below), whose sum is σ = 4134945360. Its totient is φ = 1084022784.

The previous prime is 2202020131. The next prime is 2202020147. The reversal of 2202020145 is 5410202022.

It can be written as a sum of positive squares in 8 ways, for example, as 2151382689 + 50637456 = 46383^2 + 7116^2 .

It is not a de Polignac number, because 2202020145 - 2⁵ = 2202020113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2202020147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87729 + ... + 110001.

It is an arithmetic number, because the mean of its divisors is an integer number (86144695).

Almost surely, 2^2202020145 is an apocalyptic number.

It is an amenable number.

2202020145 is a deficient number, since it is larger than the sum of its proper divisors (1932925215).

2202020145 is a wasteful number, since it uses less digits than its factorization.

2202020145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22323 (or 22294 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2202020145 is about 46925.6874749854. The cubic root of 2202020145 is about 1300.9894134457.

Adding to 2202020145 its reverse (5410202022), we get a palindrome (7612222167).

The spelling of 2202020145 in words is "two billion, two hundred two million, twenty thousand, one hundred forty-five".