20400002332202 has 4 divisors (see below), whose sum is σ = 30600003498306. Its totient is φ = 10200001166100.

The previous prime is 20400002332189. The next prime is 20400002332277. The reversal of 20400002332202 is 20223320000402.

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., 12910590383161 + 7489411949041 = 3593131^2 + 2736679^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100000583049 + ... + 5100000583052.

Almost surely, 2^{20400002332202} is an apocalyptic number.

20400002332202 is a deficient number, since it is larger than the sum of its proper divisors (10200001166104).

20400002332202 is a wasteful number, since it uses less digits than its factorization.

20400002332202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200001166103.

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20400002332202 its reverse (20223320000402), we get a palindrome (40623322332604).

The spelling of 20400002332202 in words is "twenty trillion, four hundred billion, two million, three hundred thirty-two thousand, two hundred two".