20022220202 has 4 divisors (see below), whose sum is σ = 30033330306. Its totient is φ = 10011110100.

The previous prime is 20022220193. The next prime is 20022220213. The reversal of 20022220202 is 20202222002.

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., 19968798721 + 53421481 = 141311^2 + 7309^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005555049 + ... + 5005555052.

Almost surely, 2^20022220202 is an apocalyptic number.

20022220202 is a deficient number, since it is larger than the sum of its proper divisors (10011110104).

20022220202 is a wasteful number, since it uses less digits than its factorization.

20022220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10011110103.

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

Adding to 20022220202 its reverse (20202222002), we get a palindrome (40224442204).

The spelling of 20022220202 in words is "twenty billion, twenty-two million, two hundred twenty thousand, two hundred two".