100000121212222 has 64 divisors (see below), whose sum is σ = 188869644311040. Its totient is φ = 38574349488000.

The previous prime is 100000121212183. The next prime is 100000121212261. The reversal of 100000121212222 is 222212121000001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100000121212183) and next prime (100000121212261).

It is a junction number, because it is equal to n+sod(n) for n = 100000121212196 and 100000121212205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1011411633 + ... + 1011510499.

It is an arithmetic number, because the mean of its divisors is an integer number (2951088192360).

Almost surely, 2^{100000121212222} is an apocalyptic number.

100000121212222 is a deficient number, since it is larger than the sum of its proper divisors (88869523098818).

100000121212222 is a wasteful number, since it uses less digits than its factorization.

100000121212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164017.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100000121212222 its reverse (222212121000001), we get a palindrome (322212242212223).

The spelling of 100000121212222 in words is "one hundred trillion, one hundred twenty-one million, two hundred twelve thousand, two hundred twenty-two".