20020211202122 has 16 divisors (see below), whose sum is σ = 31066232286600. Its totient is φ = 9664809047040.

The previous prime is 20020211202067. The next prime is 20020211202149. The reversal of 20020211202122 is 22120211202002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10397987117281 + 9622224084841 = 3224591^2 + 3101971^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20020211202122.

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, 2631254 + ... + 6853022.

Almost surely, 2^{20020211202122} is an apocalyptic number.

20020211202122 is a deficient number, since it is larger than the sum of its proper divisors (11046021084478).

20020211202122 is a wasteful number, since it uses less digits than its factorization.

20020211202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303561.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20020211202122 its reverse (22120211202002), we get a palindrome (42140422404124).

The spelling of 20020211202122 in words is "twenty trillion, twenty billion, two hundred eleven million, two hundred two thousand, one hundred twenty-two".