12120212102 has 4 divisors (see below), whose sum is σ = 18180318156. Its totient is φ = 6060106050.

The previous prime is 12120212053. The next prime is 12120212113. The reversal of 12120212102 is 20121202121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20121202121 = 12347 ⋅1629643.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030053024 + ... + 3030053027.

It is an arithmetic number, because the mean of its divisors is an integer number (4545079539).

Almost surely, 2^12120212102 is an apocalyptic number.

12120212102 is a deficient number, since it is larger than the sum of its proper divisors (6060106054).

12120212102 is an equidigital number, since it uses as much as digits as its factorization.

12120212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060106053.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12120212102 its reverse (20121202121), we get a palindrome (32241414223).

The spelling of 12120212102 in words is "twelve billion, one hundred twenty million, two hundred twelve thousand, one hundred two".