222212221220220 has 96 divisors (see below), whose sum is σ = 775722663184896. Its totient is φ = 46173968044800.

The previous prime is 222212221220203. The next prime is 222212221220261. The reversal of 222212221220220 is 22022122212222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24048937071 + ... + 24048946310.

It is an arithmetic number, because the mean of its divisors is an integer number (8080444408176).

Almost surely, 2^{222212221220220} is an apocalyptic number.

222212221220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222212221220220 is an abundant number, since it is smaller than the sum of its proper divisors (553510441964676).

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

222212221220220 is a wasteful number, since it uses less digits than its factorization.

222212221220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48097883411 (or 48097883409 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 222212221220220 its reverse (22022122212222), we get a palindrome (244234343432442).

It can be divided in two parts, 2222122212202 and 20, that added together give a palindrome (2222122212222).

The spelling of 222212221220220 in words is "two hundred twenty-two trillion, two hundred twelve billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twenty".