1222100220108 has 24 divisors (see below), whose sum is σ = 2854180929600. Its totient is φ = 406993347280.

The previous prime is 1222100220073. The next prime is 1222100220109. The reversal of 1222100220108 is 8010220012221.

It is not an unprimeable number, because it can be changed into a prime (1222100220109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46660458 + ... + 46686641.

It is an arithmetic number, because the mean of its divisors is an integer number (118924205400).

Almost surely, 2^{1222100220108} is an apocalyptic number.

It is an amenable number.

1222100220108 is an abundant number, since it is smaller than the sum of its proper divisors (1632080709492).

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

1222100220108 is a wasteful number, since it uses less digits than its factorization.

1222100220108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93348197 (or 93348195 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1222100220108 its reverse (8010220012221), we get a palindrome (9232320232329).

The spelling of 1222100220108 in words is "one trillion, two hundred twenty-two billion, one hundred million, two hundred twenty thousand, one hundred eight".