100221221010 has 32 divisors (see below), whose sum is σ = 246124676160. Its totient is φ = 26104131648.

The previous prime is 100221220999. The next prime is 100221221027. The reversal of 100221221010 is 10122122001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38844145 + ... + 38846724.

It is an arithmetic number, because the mean of its divisors is an integer number (7691396130).

Almost surely, 2^100221221010 is an apocalyptic number.

100221221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100221221010 is an abundant number, since it is smaller than the sum of its proper divisors (145903455150).

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

100221221010 is a wasteful number, since it uses less digits than its factorization.

100221221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77690922.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100221221010 its reverse (10122122001), we get a palindrome (110343343011).

Subtracting from 100221221010 its reverse (10122122001), we obtain a palindrome (90099099009).

The spelling of 100221221010 in words is "one hundred billion, two hundred twenty-one million, two hundred twenty-one thousand, ten".