222101100100000 has 144 divisors (see below), whose sum is σ = 596227579430112. Its totient is φ = 80764036000000.

The previous prime is 222101100099997. The next prime is 222101100100001. The reversal of 222101100100000 is 1001101222.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 222101100100000.

It is not an unprimeable number, because it can be changed into a prime (222101100100001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99855046 + ... + 102055045.

It is an arithmetic number, because the mean of its divisors is an integer number (4140469301598).

Almost surely, 2^{222101100100000} is an apocalyptic number.

222101100100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222101100100000 is an abundant number, since it is smaller than the sum of its proper divisors (374126479330112).

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

222101100100000 is an equidigital number, since it uses as much as digits as its factorization.

222101100100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201910137 (or 201910109 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 222101100100000 its reverse (1001101222), we get a palindrome (222102101201222).

The spelling of 222101100100000 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred million, one hundred thousand".