12121210602 has 32 divisors (see below), whose sum is σ = 26958375360. Its totient is φ = 4037050800.

The previous prime is 12121210601. The next prime is 12121210609. The reversal of 12121210602 is 20601212121.

12121210602 is a `hidden beast` number, since 1 + 21 + 21 + 21 + 0 + 602 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12121210601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27024 + ... + 158027.

It is an arithmetic number, because the mean of its divisors is an integer number (842449230).

Almost surely, 2^12121210602 is an apocalyptic number.

12121210602 is an abundant number, since it is smaller than the sum of its proper divisors (14837164758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12121210602 is a wasteful number, since it uses less digits than its factorization.

12121210602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186275 (or 186269 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12121210602 its reverse (20601212121), we get a palindrome (32722422723).

The spelling of 12121210602 in words is "twelve billion, one hundred twenty-one million, two hundred ten thousand, six hundred two".