20012122202 has 4 divisors (see below), whose sum is σ = 30018183306. Its totient is φ = 10006061100.

The previous prime is 20012122177. The next prime is 20012122223. The reversal of 20012122202 is 20222121002.

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., 15514944481 + 4497177721 = 124559^2 + 67061^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5003030549 + ... + 5003030552.

Almost surely, 2^20012122202 is an apocalyptic number.

20012122202 is a deficient number, since it is larger than the sum of its proper divisors (10006061104).

20012122202 is a wasteful number, since it uses less digits than its factorization.

20012122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10006061103.

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

Adding to 20012122202 its reverse (20222121002), we get a palindrome (40234243204).

The spelling of 20012122202 in words is "twenty billion, twelve million, one hundred twenty-two thousand, two hundred two".