12216529435 has 8 divisors (see below), whose sum is σ = 15992547696. Its totient is φ = 8884748640.

The previous prime is 12216529433. The next prime is 12216529441. The reversal of 12216529435 is 53492561221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12216529435 - 2¹ = 12216529433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12216529433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111059304 + ... + 111059413.

It is an arithmetic number, because the mean of its divisors is an integer number (1999068462).

Almost surely, 2^12216529435 is an apocalyptic number.

12216529435 is a deficient number, since it is larger than the sum of its proper divisors (3776018261).

12216529435 is a wasteful number, since it uses less digits than its factorization.

12216529435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222118733.

The product of its digits is 129600, while the sum is 40.

The spelling of 12216529435 in words is "twelve billion, two hundred sixteen million, five hundred twenty-nine thousand, four hundred thirty-five".