20021112111202 has 8 divisors (see below), whose sum is σ = 30031689249756. Its totient is φ = 10010549027952.

The previous prime is 20021112111179. The next prime is 20021112111257. The reversal of 20021112111202 is 20211121112002.

It can be written as a sum of positive squares in 2 ways, for example, as 16973996242401 + 3047115868801 = 4119951^2 + 1745599^2 .

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

It is a super-2 number, since 2×20021112111202² (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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1449408 + ... + 6491764.

Almost surely, 2^{20021112111202} is an apocalyptic number.

20021112111202 is a deficient number, since it is larger than the sum of its proper divisors (10010577138554).

20021112111202 is a wasteful number, since it uses less digits than its factorization.

20021112111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7027652.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20021112111202 its reverse (20211121112002), we get a palindrome (40232233223204).

The spelling of 20021112111202 in words is "twenty trillion, twenty-one billion, one hundred twelve million, one hundred eleven thousand, two hundred two".