12106215285 has 16 divisors (see below), whose sum is σ = 19373455104. Its totient is φ = 6455477952.

The previous prime is 12106215257. The next prime is 12106215311. The reversal of 12106215285 is 58251260121.

It is not a de Polignac number, because 12106215285 - 2⁶ = 12106215221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15879 + ... + 156411.

It is an arithmetic number, because the mean of its divisors is an integer number (1210840944).

Almost surely, 2^12106215285 is an apocalyptic number.

12106215285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12106215285 is a deficient number, since it is larger than the sum of its proper divisors (7267239819).

12106215285 is a wasteful number, since it uses less digits than its factorization.

12106215285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146284.

The product of its (nonzero) digits is 9600, while the sum is 33.

The spelling of 12106215285 in words is "twelve billion, one hundred six million, two hundred fifteen thousand, two hundred eighty-five".