2020001121221 has 8 divisors (see below), whose sum is σ = 2103615216384. Its totient is φ = 1937540324160.

The previous prime is 2020001121191. The next prime is 2020001121241. The reversal of 2020001121221 is 1221211000202.

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 2020001121221 - 2¹⁸ = 2020000859077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2020001121196 and 2020001121205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020001121241) 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, 288320951 + ... + 288327956.

It is an arithmetic number, because the mean of its divisors is an integer number (262951902048).

Almost surely, 2^{2020001121221} is an apocalyptic number.

It is an amenable number.

2020001121221 is a deficient number, since it is larger than the sum of its proper divisors (83614095163).

2020001121221 is a wasteful number, since it uses less digits than its factorization.

2020001121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576649051.

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

Adding to 2020001121221 its reverse (1221211000202), we get a palindrome (3241212121423).

The spelling of 2020001121221 in words is "two trillion, twenty billion, one million, one hundred twenty-one thousand, two hundred twenty-one".