20001222202 has 8 divisors (see below), whose sum is σ = 32309666676. Its totient is φ = 9231333312.

The previous prime is 20001222161. The next prime is 20001222217. The reversal of 20001222202 is 20222210002.

It can be written as a sum of positive squares in 2 ways, for example, as 16527416481 + 3473805721 = 128559^2 + 58939^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384638863 + ... + 384638914.

Almost surely, 2^20001222202 is an apocalyptic number.

20001222202 is a deficient number, since it is larger than the sum of its proper divisors (12308444474).

20001222202 is a wasteful number, since it uses less digits than its factorization.

20001222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769277792.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20001222202 its reverse (20222210002), we get a palindrome (40223432204).

The spelling of 20001222202 in words is "twenty billion, one million, two hundred twenty-two thousand, two hundred two".