100221112202122 has 4 divisors (see below), whose sum is σ = 150331668303186. Its totient is φ = 50110556101060.

The previous prime is 100221112202089. The next prime is 100221112202137. The reversal of 100221112202122 is 221202211122001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 97718385038121 + 2502727164001 = 9885261^2 + 1582001^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100221112202122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25055278050529 + ... + 25055278050532.

Almost surely, 2^{100221112202122} is an apocalyptic number.

100221112202122 is a deficient number, since it is larger than the sum of its proper divisors (50110556101064).

100221112202122 is an equidigital number, since it uses as much as digits as its factorization.

100221112202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50110556101063.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 100221112202122 its reverse (221202211122001), we get a palindrome (321423323324123).

The spelling of 100221112202122 in words is "one hundred trillion, two hundred twenty-one billion, one hundred twelve million, two hundred two thousand, one hundred twenty-two".