2021012202220 has 48 divisors (see below), whose sum is σ = 4630054010400. Its totient is φ = 734897848320.

The previous prime is 2021012202211. The next prime is 2021012202221. The reversal of 2021012202220 is 222022101202.

It is a junction number, because it is equal to n+sod(n) for n = 2021012202194 and 2021012202203.

It is not an unprimeable number, because it can be changed into a prime (2021012202221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17005966 + ... + 17124394.

It is an arithmetic number, because the mean of its divisors is an integer number (96459458550).

Almost surely, 2^{2021012202220} is an apocalyptic number.

2021012202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021012202220 is an abundant number, since it is smaller than the sum of its proper divisors (2609041808180).

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

2021012202220 is a wasteful number, since it uses less digits than its factorization.

2021012202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196018 (or 196016 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2021012202220 its reverse (222022101202), we get a palindrome (2243034303422).

The spelling of 2021012202220 in words is "two trillion, twenty-one billion, twelve million, two hundred two thousand, two hundred twenty".