221110222022100 has 144 divisors (see below), whose sum is σ = 719826246227200. Its totient is φ = 58216362197760.

The previous prime is 221110222022047. The next prime is 221110222022101. The reversal of 221110222022100 is 1220222011122.

It is a happy number.

221110222022100 is a `hidden beast` number, since 2 + 211 + 10 + 2 + 220 + 221 + 0 + 0 = 666.

221110222022100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221110222022101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 518094769 + ... + 518521368.

Almost surely, 2^{221110222022100} is an apocalyptic number.

221110222022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221110222022100 is an abundant number, since it is smaller than the sum of its proper divisors (498716024205100).

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

221110222022100 is a wasteful number, since it uses less digits than its factorization.

221110222022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036616239 (or 1036616226 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221110222022100 its reverse (1220222011122), we get a palindrome (222330444033222).

The spelling of 221110222022100 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred twenty-two million, twenty-two thousand, one hundred".