221002201111100 has 18 divisors (see below), whose sum is σ = 479574776411304. Its totient is φ = 88400880444400.

The previous prime is 221002201111049. The next prime is 221002201111171. The reversal of 221002201111100 is 1111102200122.

It is a congruent number.

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, 1105011005456 + ... + 1105011005655.

Almost surely, 2^{221002201111100} is an apocalyptic number.

221002201111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221002201111100 is an abundant number, since it is smaller than the sum of its proper divisors (258572575300204).

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

221002201111100 is a wasteful number, since it uses less digits than its factorization.

221002201111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210022011125 (or 2210022011118 counting only the distinct ones).

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

Adding to 221002201111100 its reverse (1111102200122), we get a palindrome (222113303311222).

The spelling of 221002201111100 in words is "two hundred twenty-one trillion, two billion, two hundred one million, one hundred eleven thousand, one hundred".