22202020202 has 4 divisors (see below), whose sum is σ = 33303030306. Its totient is φ = 11101010100.

The previous prime is 22202020171. The next prime is 22202020229. The reversal of 22202020202 is 20202020222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21138542881 + 1063477321 = 145391^2 + 32611^2 .

It is a super-2 number, since 2×22202020202² (a number of 21 digits) contains 22 as substring.

22202020202 is a modest number, since divided by 2020202 gives 222 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550505049 + ... + 5550505052.

Almost surely, 2^22202020202 is an apocalyptic number.

22202020202 is a deficient number, since it is larger than the sum of its proper divisors (11101010104).

22202020202 is a wasteful number, since it uses less digits than its factorization.

22202020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11101010103.

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 22202020202 its reverse (20202020222), we get a palindrome (42404040424).

It can be divided in two parts, 22 and 202020202, that multiplied together give a palindrome (4444444444).

The spelling of 22202020202 in words is "twenty-two billion, two hundred two million, twenty thousand, two hundred two".