220222201022100 has 216 divisors, whose sum is σ = 697456602489920. Its totient is φ = 58114988144640.

The previous prime is 220222201022053. The next prime is 220222201022137. The reversal of 220222201022100 is 1220102222022.

220222201022100 is a `hidden beast` number, since 2 + 20 + 222 + 201 + 0 + 221 + 0 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 965336649 + ... + 965564751.

Almost surely, 2^{220222201022100} is an apocalyptic number.

220222201022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220222201022100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348728301244960).

220222201022100 is an abundant number, since it is smaller than the sum of its proper divisors (477234401467820).

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

220222201022100 is a wasteful number, since it uses less digits than its factorization.

220222201022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239279 (or 239269 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 220222201022100 its reverse (1220102222022), we get a palindrome (221442303244122).

The spelling of 220222201022100 in words is "two hundred twenty trillion, two hundred twenty-two billion, two hundred one million, twenty-two thousand, one hundred".