20000101022120 has 32 divisors (see below), whose sum is σ = 45000420500520. Its totient is φ = 8000006062080.

The previous prime is 20000101022113. The next prime is 20000101022159. The reversal of 20000101022120 is 2122010100002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19954321284676 + 45779737444 = 4467026^2 + 213962^2 .

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, 9693224 + ... + 11574056.

Almost surely, 2^{20000101022120} is an apocalyptic number.

20000101022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000101022120 is an abundant number, since it is smaller than the sum of its proper divisors (25000319478400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20000101022120 is a wasteful number, since it uses less digits than its factorization.

20000101022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146685 (or 2146681 counting only the distinct ones).

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

Adding to 20000101022120 its reverse (2122010100002), we get a palindrome (22122111122122).

The spelling of 20000101022120 in words is "twenty trillion, one hundred one million, twenty-two thousand, one hundred twenty".