100101220100 has 72 divisors (see below), whose sum is σ = 249134971008. Its totient is φ = 34198214400.

The previous prime is 100101220049. The next prime is 100101220117. The reversal of 100101220100 is 1022101001.

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, 57752 + ... + 451151.

Almost surely, 2^100101220100 is an apocalyptic number.

100101220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100101220100 is an abundant number, since it is smaller than the sum of its proper divisors (149033750908).

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

100101220100 is a wasteful number, since it uses less digits than its factorization.

100101220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509205 (or 509198 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100101220100 its reverse (1022101001), we get a palindrome (101123321101).

The spelling of 100101220100 in words is "one hundred billion, one hundred one million, two hundred twenty thousand, one hundred".