102222123 has 4 divisors (see below), whose sum is σ = 136296168. Its totient is φ = 68148080.

The previous prime is 102222089. The next prime is 102222149. The reversal of 102222123 is 321222201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102222123 - 2⁶ = 102222059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102222023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17037018 + ... + 17037023.

It is an arithmetic number, because the mean of its divisors is an integer number (34074042).

Almost surely, 2^102222123 is an apocalyptic number.

102222123 is a deficient number, since it is larger than the sum of its proper divisors (34074045).

102222123 is an equidigital number, since it uses as much as digits as its factorization.

102222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34074044.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 102222123 is about 10110.4956851779. The cubic root of 102222123 is about 467.5717876167.

Adding to 102222123 its reverse (321222201), we get a palindrome (423444324).

It can be divided in two parts, 102 and 222123, that multiplied together give a triangular number (22656546 = T₆₇₃₁).

The spelling of 102222123 in words is "one hundred two million, two hundred twenty-two thousand, one hundred twenty-three".