100221021022210 has 48 divisors (see below), whose sum is σ = 200516493756600. Its totient is φ = 36034524373760.

The previous prime is 100221021022159. The next prime is 100221021022229. The reversal of 100221021022210 is 12220120122001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 82493241291241 + 17727779730969 = 9082579^2 + 4210437^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465214165 + ... + 465429544.

Almost surely, 2^{100221021022210} is an apocalyptic number.

100221021022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100221021022210 is an abundant number, since it is smaller than the sum of its proper divisors (100295472734390).

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

100221021022210 is a wasteful number, since it uses less digits than its factorization.

100221021022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930643827 (or 930643816 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100221021022210 its reverse (12220120122001), we get a palindrome (112441141144211).

The spelling of 100221021022210 in words is "one hundred trillion, two hundred twenty-one billion, twenty-one million, twenty-two thousand, two hundred ten".