20201202102122 has 16 divisors (see below), whose sum is σ = 30682226736000. Its totient is φ = 9973914949152.

The previous prime is 20201202102091. The next prime is 20201202102127. The reversal of 20201202102122 is 22120120210202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20201202102122.

It is not an unprimeable number, because it can be changed into a prime (20201202102127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30106883 + ... + 30770550.

It is an arithmetic number, because the mean of its divisors is an integer number (1917639171000).

Almost surely, 2^{20201202102122} is an apocalyptic number.

20201202102122 is a deficient number, since it is larger than the sum of its proper divisors (10481024633878).

20201202102122 is a wasteful number, since it uses less digits than its factorization.

20201202102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60879517.

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

Adding to 20201202102122 its reverse (22120120210202), we get a palindrome (42321322312324).

The spelling of 20201202102122 in words is "twenty trillion, two hundred one billion, two hundred two million, one hundred two thousand, one hundred twenty-two".