221002100101100 has 18 divisors (see below), whose sum is σ = 479574557219604. Its totient is φ = 88400840040400.

The previous prime is 221002100101051. The next prime is 221002100101163. The reversal of 221002100101100 is 1101001200122.

221002100101100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1105010500406 + ... + 1105010500605.

Almost surely, 2^{221002100101100} is an apocalyptic number.

221002100101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221002100101100 is an abundant number, since it is smaller than the sum of its proper divisors (258572457118504).

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

221002100101100 is a wasteful number, since it uses less digits than its factorization.

221002100101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210021001025 (or 2210021001018 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 221002100101100 its reverse (1101001200122), we get a palindrome (222103101301222).

The spelling of 221002100101100 in words is "two hundred twenty-one trillion, two billion, one hundred million, one hundred one thousand, one hundred".