220122122201100 has 216 divisors, whose sum is σ = 803404214776800. Its totient is φ = 49364314122240.

The previous prime is 220122122201063. The next prime is 220122122201119. The reversal of 220122122201100 is 1102221221022.

It is a happy number.

220122122201100 is a `hidden beast` number, since 220 + 1 + 2 + 212 + 220 + 1 + 10 + 0 = 666.

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

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, 329288925 + ... + 329956724.

It is an arithmetic number, because the mean of its divisors is an integer number (3719463957300).

Almost surely, 2^{220122122201100} is an apocalyptic number.

220122122201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220122122201100 is an abundant number, since it is smaller than the sum of its proper divisors (583282092575700).

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

220122122201100 is a wasteful number, since it uses less digits than its factorization.

220122122201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659245729 (or 659245719 counting only the distinct ones).

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

Adding to 220122122201100 its reverse (1102221221022), we get a palindrome (221224343422122).

The spelling of 220122122201100 in words is "two hundred twenty trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred one thousand, one hundred".