12012019101 has 12 divisors (see below), whose sum is σ = 17351654112. Its totient is φ = 8007569736.

The previous prime is 12012019087. The next prime is 12012019109. The reversal of 12012019101 is 10191021021.

It is a happy number.

It is not a de Polignac number, because 12012019101 - 2¹⁸ = 12011756957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012019109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 263350 + ... + 305576.

It is an arithmetic number, because the mean of its divisors is an integer number (1445971176).

Almost surely, 2^12012019101 is an apocalyptic number.

It is an amenable number.

12012019101 is a deficient number, since it is larger than the sum of its proper divisors (5339635011).

12012019101 is a wasteful number, since it uses less digits than its factorization.

12012019101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73840 (or 73837 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 12012019101 in words is "twelve billion, twelve million, nineteen thousand, one hundred one".