100123312222 has 4 divisors (see below), whose sum is σ = 150184968336. Its totient is φ = 50061656110.

The previous prime is 100123312213. The next prime is 100123312231. The reversal of 100123312222 is 222213321001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222213321001 = 7 ⋅31744760143.

It is an interprime number because it is at equal distance from previous prime (100123312213) and next prime (100123312231).

It is a self number, because there is not a number n which added to its sum of digits gives 100123312222.

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, 25030828054 + ... + 25030828057.

It is an arithmetic number, because the mean of its divisors is an integer number (37546242084).

Almost surely, 2^100123312222 is an apocalyptic number.

100123312222 is a deficient number, since it is larger than the sum of its proper divisors (50061656114).

100123312222 is an equidigital number, since it uses as much as digits as its factorization.

100123312222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50061656113.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 100123312222 its reverse (222213321001), we get a palindrome (322336633223).

The spelling of 100123312222 in words is "one hundred billion, one hundred twenty-three million, three hundred twelve thousand, two hundred twenty-two".