100221212010 has 32 divisors (see below), whose sum is σ = 240582197952. Its totient is φ = 26719957760.

The previous prime is 100221212009. The next prime is 100221212017. The reversal of 100221212010 is 10212122001.

It is not an unprimeable number, because it can be changed into a prime (100221212017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212184 + ... + 495443.

It is an arithmetic number, because the mean of its divisors is an integer number (7518193686).

Almost surely, 2^100221212010 is an apocalyptic number.

100221212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100221212010 is an abundant number, since it is smaller than the sum of its proper divisors (140360985942).

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

100221212010 is a wasteful number, since it uses less digits than its factorization.

100221212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712358.

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

Adding to 100221212010 its reverse (10212122001), we get a palindrome (110433334011).

Subtracting from 100221212010 its reverse (10212122001), we obtain a palindrome (90009090009).

The spelling of 100221212010 in words is "one hundred billion, two hundred twenty-one million, two hundred twelve thousand, ten".