222222201022122 has 64 divisors (see below), whose sum is σ = 516728814739200. Its totient is φ = 62394890158080.

The previous prime is 222222201022051. The next prime is 222222201022123. The reversal of 222222201022122 is 221220102222222.

It is a junction number, because it is equal to n+sod(n) for n = 222222201022092 and 222222201022101.

It is not an unprimeable number, because it can be changed into a prime (222222201022123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36265047 + ... + 41947562.

It is an arithmetic number, because the mean of its divisors is an integer number (8073887730300).

Almost surely, 2^{222222201022122} is an apocalyptic number.

222222201022122 is an abundant number, since it is smaller than the sum of its proper divisors (294506613717078).

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

222222201022122 is a wasteful number, since it uses less digits than its factorization.

222222201022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78213791.

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

Adding to 222222201022122 its reverse (221220102222222), we get a palindrome (443442303244344).

The spelling of 222222201022122 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred one million, twenty-two thousand, one hundred twenty-two".