20200201221021 has 8 divisors (see below), whose sum is σ = 26946348253440. Its totient is φ = 13460427501312.

The previous prime is 20200201220989. The next prime is 20200201221043. The reversal of 20200201221021 is 12012210200202.

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

It is not a de Polignac number, because 20200201221021 - 2⁵ = 20200201220989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200201221091) 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, 1593320781 + ... + 1593333458.

It is an arithmetic number, because the mean of its divisors is an integer number (3368293531680).

Almost surely, 2^{20200201221021} is an apocalyptic number.

It is an amenable number.

20200201221021 is a deficient number, since it is larger than the sum of its proper divisors (6746147032419).

20200201221021 is a wasteful number, since it uses less digits than its factorization.

20200201221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186656355.

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

Adding to 20200201221021 its reverse (12012210200202), we get a palindrome (32212411421223).

The spelling of 20200201221021 in words is "twenty trillion, two hundred billion, two hundred one million, two hundred twenty-one thousand, twenty-one".