222222121202220 has 24 divisors (see below), whose sum is σ = 622221939366384. Its totient is φ = 59259232320576.

The previous prime is 222222121202203. The next prime is 222222121202317. The reversal of 222222121202220 is 22202121222222.

It is a super-2 number, since 2×222222121202220² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1851851009959 + ... + 1851851010078.

It is an arithmetic number, because the mean of its divisors is an integer number (25925914140266).

Almost surely, 2^{222222121202220} is an apocalyptic number.

222222121202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222222121202220 is an abundant number, since it is smaller than the sum of its proper divisors (399999818164164).

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

222222121202220 is a wasteful number, since it uses less digits than its factorization.

222222121202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703702020049 (or 3703702020047 counting only the distinct ones).

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

Adding to 222222121202220 its reverse (22202121222222), we get a palindrome (244424242424442).

The spelling of 222222121202220 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred two thousand, two hundred twenty".