100222211001220 has 96 divisors (see below), whose sum is σ = 262500556066560. Its totient is φ = 31226117283840.

The previous prime is 100222211001203. The next prime is 100222211001287. The reversal of 100222211001220 is 22100112222001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100222211001194 and 100222211001203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8454229 + ... + 16489948.

It is an arithmetic number, because the mean of its divisors is an integer number (2734380792360).

Almost surely, 2^{100222211001220} is an apocalyptic number.

100222211001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100222211001220 is an abundant number, since it is smaller than the sum of its proper divisors (162278345065340).

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

100222211001220 is a wasteful number, since it uses less digits than its factorization.

100222211001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24946813 (or 24946811 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100222211001220 its reverse (22100112222001), we get a palindrome (122322323223221).

The spelling of 100222211001220 in words is "one hundred trillion, two hundred twenty-two billion, two hundred eleven million, one thousand, two hundred twenty".