100221222212 has 48 divisors (see below), whose sum is σ = 190076178432. Its totient is φ = 46100910240.

The previous prime is 100221222203. The next prime is 100221222247. The reversal of 100221222212 is 212222122001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357083 + ... + 572669.

It is an arithmetic number, because the mean of its divisors is an integer number (3959920384).

Almost surely, 2^100221222212 is an apocalyptic number.

It is an amenable number.

100221222212 is a deficient number, since it is larger than the sum of its proper divisors (89854956220).

100221222212 is a wasteful number, since it uses less digits than its factorization.

100221222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215808 (or 215806 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 100221222212 its reverse (212222122001), we get a palindrome (312443344213).

The spelling of 100221222212 in words is "one hundred billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred twelve".