20001202120122 has 32 divisors (see below), whose sum is σ = 40246610890752. Its totient is φ = 6626375534064.

The previous prime is 20001202120117. The next prime is 20001202120181. The reversal of 20001202120122 is 22102120210002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7510063 + ... + 9818525.

It is an arithmetic number, because the mean of its divisors is an integer number (1257706590336).

Almost surely, 2^{20001202120122} is an apocalyptic number.

20001202120122 is an abundant number, since it is smaller than the sum of its proper divisors (20245408770630).

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

20001202120122 is a wasteful number, since it uses less digits than its factorization.

20001202120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317282.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20001202120122 its reverse (22102120210002), we get a palindrome (42103322330124).

The spelling of 20001202120122 in words is "twenty trillion, one billion, two hundred two million, one hundred twenty thousand, one hundred twenty-two".