20202222111220 has 12 divisors (see below), whose sum is σ = 42424666433604. Its totient is φ = 8080888844480.

The previous prime is 20202222111199. The next prime is 20202222111263. The reversal of 20202222111220 is 2211122220202.

20202222111220 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 2990775936996 + 17211446174224 = 1729386^2 + 4148668^2 .

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, 505055552761 + ... + 505055552800.

It is an arithmetic number, because the mean of its divisors is an integer number (3535388869467).

Almost surely, 2^{20202222111220} is an apocalyptic number.

20202222111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202222111220 is an abundant number, since it is smaller than the sum of its proper divisors (22222444322384).

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

20202222111220 is a wasteful number, since it uses less digits than its factorization.

20202222111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010111105570 (or 1010111105568 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20202222111220 its reverse (2211122220202), we get a palindrome (22413344331422).

The spelling of 20202222111220 in words is "twenty trillion, two hundred two billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twenty".