20201202211220 has 12 divisors (see below), whose sum is σ = 42422524643604. Its totient is φ = 8080480884480.

The previous prime is 20201202211193. The next prime is 20201202211273. The reversal of 20201202211220 is 2211220210202.

It is a happy number.

20201202211220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9707736044176 + 10493466167044 = 3115724^2 + 3239362^2 .

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, 505030055261 + ... + 505030055300.

It is an arithmetic number, because the mean of its divisors is an integer number (3535210386967).

Almost surely, 2^{20201202211220} is an apocalyptic number.

20201202211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201202211220 is an abundant number, since it is smaller than the sum of its proper divisors (22221322432384).

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

20201202211220 is a wasteful number, since it uses less digits than its factorization.

20201202211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010060110570 (or 1010060110568 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20201202211220 its reverse (2211220210202), we get a palindrome (22412422421422).

The spelling of 20201202211220 in words is "twenty trillion, two hundred one billion, two hundred two million, two hundred eleven thousand, two hundred twenty".