102211202123 has 4 divisors (see below), whose sum is σ = 102214340160. Its totient is φ = 102208064088.

The previous prime is 102211202099. The next prime is 102211202129. The reversal of 102211202123 is 321202112201.

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 102211202123 - 2²⁰ = 102210153547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102211202129) 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, 1519643 + ... + 1585476.

It is an arithmetic number, because the mean of its divisors is an integer number (25553585040).

Almost surely, 2^102211202123 is an apocalyptic number.

102211202123 is a deficient number, since it is larger than the sum of its proper divisors (3138037).

102211202123 is an equidigital number, since it uses as much as digits as its factorization.

102211202123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138036.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102211202123 its reverse (321202112201), we get a palindrome (423413314324).

The spelling of 102211202123 in words is "one hundred two billion, two hundred eleven million, two hundred two thousand, one hundred twenty-three".