12012010101 has 80 divisors (see below), whose sum is σ = 22555298304. Its totient is φ = 6201017856.

The previous prime is 12012010099. The next prime is 12012010117. The reversal of 12012010101 is 10101021021.

It is a happy number.

It is not a de Polignac number, because 12012010101 - 2¹ = 12012010099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012010181) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 329101 + ... + 363773.

Almost surely, 2^12012010101 is an apocalyptic number.

It is an amenable number.

12012010101 is a deficient number, since it is larger than the sum of its proper divisors (10543288203).

12012010101 is a wasteful number, since it uses less digits than its factorization.

12012010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34752 (or 34743 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12012010101 its reverse (10101021021), we get a palindrome (22113031122).

The spelling of 12012010101 in words is "twelve billion, twelve million, ten thousand, one hundred one".