22223331211220 has 48 divisors (see below), whose sum is σ = 47215785928080. Its totient is φ = 8785592792064.

The previous prime is 22223331211217. The next prime is 22223331211243. The reversal of 22223331211220 is 2211213332222.

It can be written as a sum of positive squares in 8 ways, for example, as 4081030264336 + 18142300946884 = 2020156^2 + 4259378^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22223331211220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11973569 + ... + 13704488.

It is an arithmetic number, because the mean of its divisors is an integer number (983662206835).

Almost surely, 2^{22223331211220} is an apocalyptic number.

22223331211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22223331211220 is an abundant number, since it is smaller than the sum of its proper divisors (24992454716860).

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

22223331211220 is a wasteful number, since it uses less digits than its factorization.

22223331211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25678572 (or 25678570 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 22223331211220 its reverse (2211213332222), we get a palindrome (24434544543442).

The spelling of 22223331211220 in words is "twenty-two trillion, two hundred twenty-three billion, three hundred thirty-one million, two hundred eleven thousand, two hundred twenty".