12402010221 has 8 divisors (see below), whose sum is σ = 17508720384. Its totient is φ = 7781653440.

The previous prime is 12402010219. The next prime is 12402010259. The reversal of 12402010221 is 12201020421.

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

It is not a de Polignac number, because 12402010221 - 2¹ = 12402010219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12402010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402010211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 121588285 + ... + 121588386.

It is an arithmetic number, because the mean of its divisors is an integer number (2188590048).

Almost surely, 2^12402010221 is an apocalyptic number.

It is an amenable number.

12402010221 is a deficient number, since it is larger than the sum of its proper divisors (5106710163).

12402010221 is a wasteful number, since it uses less digits than its factorization.

12402010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243176691.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12402010221 its reverse (12201020421), we get a palindrome (24603030642).

The spelling of 12402010221 in words is "twelve billion, four hundred two million, ten thousand, two hundred twenty-one".