20111202002 has 16 divisors (see below), whose sum is σ = 30974001912. Its totient is φ = 9787668480.

The previous prime is 20111201969. The next prime is 20111202049. The reversal of 20111202002 is 20020211102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3457557601 + 16653644401 = 58801^2 + 129049^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247703 + ... + 318714.

Almost surely, 2^20111202002 is an apocalyptic number.

20111202002 is a deficient number, since it is larger than the sum of its proper divisors (10862799910).

20111202002 is a wasteful number, since it uses less digits than its factorization.

20111202002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566893.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20111202002 its reverse (20020211102), we get a palindrome (40131413104).

The spelling of 20111202002 in words is "twenty billion, one hundred eleven million, two hundred two thousand, two".