100012021022222 has 4 divisors (see below), whose sum is σ = 150018031533336. Its totient is φ = 50006010511110.

The previous prime is 100012021022197. The next prime is 100012021022267. The reversal of 100012021022222 is 222220120210001.

It is a happy number.

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 100012021022222.

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, 25003005255554 + ... + 25003005255557.

It is an arithmetic number, because the mean of its divisors is an integer number (37504507883334).

Almost surely, 2^{100012021022222} is an apocalyptic number.

100012021022222 is a deficient number, since it is larger than the sum of its proper divisors (50006010511114).

100012021022222 is an equidigital number, since it uses as much as digits as its factorization.

100012021022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50006010511113.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 100012021022222 its reverse (222220120210001), we get a palindrome (322232141232223).

The spelling of 100012021022222 in words is "one hundred trillion, twelve billion, twenty-one million, twenty-two thousand, two hundred twenty-two".