20221033111220 has 12 divisors (see below), whose sum is σ = 42464169533604. Its totient is φ = 8088413244480.

The previous prime is 20221033111171. The next prime is 20221033111241. The reversal of 20221033111220 is 2211133012202.

It can be written as a sum of positive squares in 2 ways, for example, as 14923108945936 + 5297924165284 = 3863044^2 + 2301722^2 .

It is a super-3 number, since 3×20221033111220³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1011051655561 = 20221033111220 / (2 + 0 + 2 + 2 + 1 + 0 + 3 + 3 + 1 + 1 + 1 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 20221033111192 and 20221033111201.

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, 505525827761 + ... + 505525827800.

It is an arithmetic number, because the mean of its divisors is an integer number (3538680794467).

Almost surely, 2^{20221033111220} is an apocalyptic number.

20221033111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221033111220 is an abundant number, since it is smaller than the sum of its proper divisors (22243136422384).

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

20221033111220 is a wasteful number, since it uses less digits than its factorization.

20221033111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011051655570 (or 1011051655568 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20221033111220 its reverse (2211133012202), we get a palindrome (22432166123422).

The spelling of 20221033111220 in words is "twenty trillion, two hundred twenty-one billion, thirty-three million, one hundred eleven thousand, two hundred twenty".