100221120022222 has 4 divisors (see below), whose sum is σ = 150331680033336. Its totient is φ = 50110560011110.

The previous prime is 100221120022193. The next prime is 100221120022349. The reversal of 100221120022222 is 222220021122001.

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

It is a self number, because there is not a number n which added to its sum of digits gives 100221120022222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25055280005554 + ... + 25055280005557.

It is an arithmetic number, because the mean of its divisors is an integer number (37582920008334).

Almost surely, 2^{100221120022222} is an apocalyptic number.

100221120022222 is a deficient number, since it is larger than the sum of its proper divisors (50110560011114).

100221120022222 is an equidigital number, since it uses as much as digits as its factorization.

100221120022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50110560011113.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 100221120022222 its reverse (222220021122001), we get a palindrome (322441141144223).

The spelling of 100221120022222 in words is "one hundred trillion, two hundred twenty-one billion, one hundred twenty million, twenty-two thousand, two hundred twenty-two".