12402221047284 has 24 divisors (see below), whose sum is σ = 28966584201408. Its totient is φ = 4130063907520.

The previous prime is 12402221047283. The next prime is 12402221047291. The reversal of 12402221047284 is 48274012220421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402221047283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501208977 + ... + 501233720.

It is an arithmetic number, because the mean of its divisors is an integer number (1206941008392).

Almost surely, 2^{12402221047284} is an apocalyptic number.

It is an amenable number.

12402221047284 is an abundant number, since it is smaller than the sum of its proper divisors (16564363154124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12402221047284 is a wasteful number, since it uses less digits than its factorization.

12402221047284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002443735 (or 1002443733 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 39.

The spelling of 12402221047284 in words is "twelve trillion, four hundred two billion, two hundred twenty-one million, forty-seven thousand, two hundred eighty-four".