221002101112100 has 72 divisors (see below), whose sum is σ = 597911139029568. Its totient is φ = 68883771772800.

The previous prime is 221002101112027. The next prime is 221002101112139. The reversal of 221002101112100 is 1211101200122.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 14350778087 + ... + 14350793486.

Almost surely, 2^{221002101112100} is an apocalyptic number.

221002101112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221002101112100 is an abundant number, since it is smaller than the sum of its proper divisors (376909037917468).

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

221002101112100 is a wasteful number, since it uses less digits than its factorization.

221002101112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28701571605 (or 28701571598 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221002101112100 its reverse (1211101200122), we get a palindrome (222213202312222).

The spelling of 221002101112100 in words is "two hundred twenty-one trillion, two billion, one hundred one million, one hundred twelve thousand, one hundred".