13212202123 has 4 divisors (see below), whose sum is σ = 13255238920. Its totient is φ = 13169165328.

The previous prime is 13212202099. The next prime is 13212202147. The reversal of 13212202123 is 32120221231.

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

It is an interprime number because it is at equal distance from previous prime (13212202099) and next prime (13212202147).

It is not a de Polignac number, because 13212202123 - 2¹⁷ = 13212071051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13212202123.

It is not an unprimeable number, because it can be changed into a prime (13212002123) 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, 21517938 + ... + 21518551.

It is an arithmetic number, because the mean of its divisors is an integer number (3313809730).

Almost surely, 2^13212202123 is an apocalyptic number.

13212202123 is a deficient number, since it is larger than the sum of its proper divisors (43036797).

13212202123 is an equidigital number, since it uses as much as digits as its factorization.

13212202123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43036796.

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

Adding to 13212202123 its reverse (32120221231), we get a palindrome (45332423354).

The spelling of 13212202123 in words is "thirteen billion, two hundred twelve million, two hundred two thousand, one hundred twenty-three".