20012111202002 has 4 divisors (see below), whose sum is σ = 30018166803006. Its totient is φ = 10006055601000.

The previous prime is 20012111201981. The next prime is 20012111202023. The reversal of 20012111202002 is 20020211121002.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20012111201981) and next prime (20012111202023).

It can be written as a sum of positive squares in only one way, i.e., 11832230919601 + 8179880282401 = 3439801^2 + 2860049^2 .

It is a super-2 number, since 2×20012111202002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5003027800499 + ... + 5003027800502.

Almost surely, 2^{20012111202002} is an apocalyptic number.

20012111202002 is a deficient number, since it is larger than the sum of its proper divisors (10006055601004).

20012111202002 is a wasteful number, since it uses less digits than its factorization.

20012111202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10006055601003.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20012111202002 its reverse (20020211121002), we get a palindrome (40032322323004).

The spelling of 20012111202002 in words is "twenty trillion, twelve billion, one hundred eleven million, two hundred two thousand, two".