102123222121 has 8 divisors (see below), whose sum is σ = 102403072800. Its totient is φ = 101843605248.

The previous prime is 102123222119. The next prime is 102123222143. The reversal of 102123222121 is 121222321201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102123222121 - 2¹ = 102123222119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102123222181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834930 + ... + 949396.

It is an arithmetic number, because the mean of its divisors is an integer number (12800384100).

Almost surely, 2^102123222121 is an apocalyptic number.

It is an amenable number.

102123222121 is a deficient number, since it is larger than the sum of its proper divisors (279850679).

102123222121 is a wasteful number, since it uses less digits than its factorization.

102123222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116903.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 102123222121 its reverse (121222321201), we get a palindrome (223345543322).

The spelling of 102123222121 in words is "one hundred two billion, one hundred twenty-three million, two hundred twenty-two thousand, one hundred twenty-one".