20002220201121 has 8 divisors (see below), whose sum is σ = 26676552327264. Its totient is φ = 13331350771200.

The previous prime is 20002220201113. The next prime is 20002220201203. The reversal of 20002220201121 is 12110202220002.

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

It is not a de Polignac number, because 20002220201121 - 2³ = 20002220201113 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20002220201121.

It is not an unprimeable number, because it can be changed into a prime (20002220201221) 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, 865660576 + ... + 865683681.

It is an arithmetic number, because the mean of its divisors is an integer number (3334569040908).

Almost surely, 2^{20002220201121} is an apocalyptic number.

It is an amenable number.

20002220201121 is a deficient number, since it is larger than the sum of its proper divisors (6674332126143).

20002220201121 is a wasteful number, since it uses less digits than its factorization.

20002220201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731348111.

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

Adding to 20002220201121 its reverse (12110202220002), we get a palindrome (32112422421123).

The spelling of 20002220201121 in words is "twenty trillion, two billion, two hundred twenty million, two hundred one thousand, one hundred twenty-one".