100222212212222 has 4 divisors (see below), whose sum is σ = 150333318318336. Its totient is φ = 50111106106110.

The previous prime is 100222212212197. The next prime is 100222212212261. The reversal of 100222212212222 is 222212212222001.

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

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, 25055553053054 + ... + 25055553053057.

It is an arithmetic number, because the mean of its divisors is an integer number (37583329579584).

Almost surely, 2^{100222212212222} is an apocalyptic number.

100222212212222 is a deficient number, since it is larger than the sum of its proper divisors (50111106106114).

100222212212222 is an equidigital number, since it uses as much as digits as its factorization.

100222212212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50111106106113.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 100222212212222 its reverse (222212212222001), we get a palindrome (322434424434223).

The spelling of 100222212212222 in words is "one hundred trillion, two hundred twenty-two billion, two hundred twelve million, two hundred twelve thousand, two hundred twenty-two".