12001220102 has 4 divisors (see below), whose sum is σ = 18001830156. Its totient is φ = 6000610050.

The previous prime is 12001220089. The next prime is 12001220113. The reversal of 12001220102 is 20102210021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20102210021 = 9371 ⋅2145151.

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, 3000305024 + ... + 3000305027.

It is an arithmetic number, because the mean of its divisors is an integer number (4500457539).

Almost surely, 2^12001220102 is an apocalyptic number.

12001220102 is a deficient number, since it is larger than the sum of its proper divisors (6000610054).

12001220102 is an equidigital number, since it uses as much as digits as its factorization.

12001220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000610053.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12001220102 its reverse (20102210021), we get a palindrome (32103430123).

The spelling of 12001220102 in words is "twelve billion, one million, two hundred twenty thousand, one hundred two".