222222121102220 has 12 divisors (see below), whose sum is σ = 466666454314704. Its totient is φ = 88888848440880.

The previous prime is 222222121102169. The next prime is 222222121102249. The reversal of 222222121102220 is 22201121222222.

222222121102220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222222121102220² (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 3 ways as a sum of consecutive naturals, for example, 5555553027536 + ... + 5555553027575.

It is an arithmetic number, because the mean of its divisors is an integer number (38888871192892).

Almost surely, 2^{222222121102220} is an apocalyptic number.

222222121102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222222121102220 is an abundant number, since it is smaller than the sum of its proper divisors (244444333212484).

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

222222121102220 is a wasteful number, since it uses less digits than its factorization.

222222121102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111106055120 (or 11111106055118 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 222222121102220 its reverse (22201121222222), we get a palindrome (244423242324442).

The spelling of 222222121102220 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred two thousand, two hundred twenty".