20102202100202 has 4 divisors (see below), whose sum is σ = 30153303150306. Its totient is φ = 10051101050100.

The previous prime is 20102202100193. The next prime is 20102202100217. The reversal of 20102202100202 is 20200120220102.

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., 18018997724641 + 2083204375561 = 4244879^2 + 1443331^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025550525049 + ... + 5025550525052.

Almost surely, 2^{20102202100202} is an apocalyptic number.

20102202100202 is a deficient number, since it is larger than the sum of its proper divisors (10051101050104).

20102202100202 is a wasteful number, since it uses less digits than its factorization.

20102202100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051101050103.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20102202100202 its reverse (20200120220102), we get a palindrome (40302322320304).

The spelling of 20102202100202 in words is "twenty trillion, one hundred two billion, two hundred two million, one hundred thousand, two hundred two".