221010202201100 has 72 divisors (see below), whose sum is σ = 516487440479808. Its totient is φ = 81603198374400.

The previous prime is 221010202201067. The next prime is 221010202201111. The reversal of 221010202201100 is 1102202010122.

It is a super-2 number, since 2×221010202201100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216704360 + ... + 217721840.

Almost surely, 2^{221010202201100} is an apocalyptic number.

221010202201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221010202201100 is an abundant number, since it is smaller than the sum of its proper divisors (295477238278708).

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

221010202201100 is a wasteful number, since it uses less digits than its factorization.

221010202201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184595 (or 1184588 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221010202201100 its reverse (1102202010122), we get a palindrome (222112404211222).

The spelling of 221010202201100 in words is "two hundred twenty-one trillion, ten billion, two hundred two million, two hundred one thousand, one hundred".