2020121001220 has 24 divisors (see below), whose sum is σ = 4848290403264. Its totient is φ = 692612914656.

The previous prime is 2020121001187. The next prime is 2020121001247. The reversal of 2020121001220 is 221001210202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020121001220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7214717722 + ... + 7214718001.

It is an arithmetic number, because the mean of its divisors is an integer number (202012100136).

Almost surely, 2^{2020121001220} is an apocalyptic number.

2020121001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020121001220 is an abundant number, since it is smaller than the sum of its proper divisors (2828169402044).

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

2020121001220 is a wasteful number, since it uses less digits than its factorization.

2020121001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14429435739 (or 14429435737 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2020121001220 its reverse (221001210202), we get a palindrome (2241122211422).

The spelling of 2020121001220 in words is "two trillion, twenty billion, one hundred twenty-one million, one thousand, two hundred twenty".