100222220201220 has 144 divisors (see below), whose sum is σ = 327871936147392. Its totient is φ = 24633964396800.

The previous prime is 100222220201203. The next prime is 100222220201237. The reversal of 100222220201220 is 22102022222001.

100222220201220 is a `hidden beast` number, since 1 + 0 + 0 + 2 + 22 + 220 + 201 + 220 = 666.

It is an interprime number because it is at equal distance from previous prime (100222220201203) and next prime (100222220201237).

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

It is a junction number, because it is equal to n+sod(n) for n = 100222220201193 and 100222220201202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29756106 + ... + 32952545.

It is an arithmetic number, because the mean of its divisors is an integer number (2276888445468).

Almost surely, 2^{100222220201220} is an apocalyptic number.

100222220201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100222220201220 is an abundant number, since it is smaller than the sum of its proper divisors (227649715946172).

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

100222220201220 is a wasteful number, since it uses less digits than its factorization.

100222220201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62709362 (or 62709357 counting only the distinct ones).

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

Adding to 100222220201220 its reverse (22102022222001), we get a palindrome (122324242423221).

It can be divided in two parts, 1002 and 22220201220, that added together give a palindrome (22220202222).

The spelling of 100222220201220 in words is "one hundred trillion, two hundred twenty-two billion, two hundred twenty million, two hundred one thousand, two hundred twenty".