2021022120220 has 12 divisors (see below), whose sum is σ = 4244146452504. Its totient is φ = 808408848080.

The previous prime is 2021022120211. The next prime is 2021022120251. The reversal of 2021022120220 is 220212201202.

It is a junction number, because it is equal to n+sod(n) for n = 2021022120194 and 2021022120203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50525552986 + ... + 50525553025.

It is an arithmetic number, because the mean of its divisors is an integer number (353678871042).

Almost surely, 2^{2021022120220} is an apocalyptic number.

2021022120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021022120220 is an abundant number, since it is smaller than the sum of its proper divisors (2223124332284).

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

2021022120220 is a wasteful number, since it uses less digits than its factorization.

2021022120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101051106020 (or 101051106018 counting only the distinct ones).

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

Adding to 2021022120220 its reverse (220212201202), we get a palindrome (2241234321422).

The spelling of 2021022120220 in words is "two trillion, twenty-one billion, twenty-two million, one hundred twenty thousand, two hundred twenty".