12012102101234 has 4 divisors (see below), whose sum is σ = 18018153151854. Its totient is φ = 6006051050616.

The previous prime is 12012102101201. The next prime is 12012102101243. The reversal of 12012102101234 is 43210120121021.

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

It can be written as a sum of positive squares in only one way, i.e., 11081075880625 + 931026220609 = 3328825^2 + 964897^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3003025525307 + ... + 3003025525310.

Almost surely, 2^{12012102101234} is an apocalyptic number.

12012102101234 is a deficient number, since it is larger than the sum of its proper divisors (6006051050620).

12012102101234 is an equidigital number, since it uses as much as digits as its factorization.

12012102101234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6006051050619.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12012102101234 its reverse (43210120121021), we get a palindrome (55222222222255).

The spelling of 12012102101234 in words is "twelve trillion, twelve billion, one hundred two million, one hundred one thousand, two hundred thirty-four".