221002020111100 has 36 divisors (see below), whose sum is σ = 480268413290008. Its totient is φ = 88272876312000.

The previous prime is 221002020111083. The next prime is 221002020111143. The reversal of 221002020111100 is 1111020200122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1599077211 + ... + 1599215410.

Almost surely, 2^{221002020111100} is an apocalyptic number.

221002020111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221002020111100 is an abundant number, since it is smaller than the sum of its proper divisors (259266393178908).

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

221002020111100 is a wasteful number, since it uses less digits than its factorization.

221002020111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198293326 (or 3198293319 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221002020111100 its reverse (1111020200122), we get a palindrome (222113040311222).

The spelling of 221002020111100 in words is "two hundred twenty-one trillion, two billion, twenty million, one hundred eleven thousand, one hundred".