20200201021121 has 8 divisors (see below), whose sum is σ = 22036642286688. Its totient is φ = 18363769648000.

The previous prime is 20200201021109. The next prime is 20200201021123. The reversal of 20200201021121 is 12112010200202.

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

It is a cyclic number.

It is not a de Polignac number, because 20200201021121 - 2⁴² = 15802154510017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200201021096 and 20200201021105.

It is not an unprimeable number, because it can be changed into a prime (20200201021123) 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, 2176586 + ... + 6718476.

It is an arithmetic number, because the mean of its divisors is an integer number (2754580285836).

Almost surely, 2^{20200201021121} is an apocalyptic number.

It is an amenable number.

20200201021121 is a deficient number, since it is larger than the sum of its proper divisors (1836441265567).

20200201021121 is a wasteful number, since it uses less digits than its factorization.

20200201021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4946223.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20200201021121 its reverse (12112010200202), we get a palindrome (32312211221323).

The spelling of 20200201021121 in words is "twenty trillion, two hundred billion, two hundred one million, twenty-one thousand, one hundred twenty-one".