12212227015 has 32 divisors (see below), whose sum is σ = 15793272000. Its totient is φ = 9031993344.

The previous prime is 12212226973. The next prime is 12212227031. The reversal of 12212227015 is 51072221221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12212227015 - 2²¹ = 12210129863 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 (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2121361 + ... + 2127109.

It is an arithmetic number, because the mean of its divisors is an integer number (493539750).

Almost surely, 2^12212227015 is an apocalyptic number.

12212227015 is a deficient number, since it is larger than the sum of its proper divisors (3581044985).

12212227015 is a wasteful number, since it uses less digits than its factorization.

12212227015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6211.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 12212227015 its reverse (51072221221), we get a palindrome (63284448236).

The spelling of 12212227015 in words is "twelve billion, two hundred twelve million, two hundred twenty-seven thousand, fifteen".