12221421053 has 8 divisors (see below), whose sum is σ = 12865704000. Its totient is φ = 11577243168.

The previous prime is 12221421031. The next prime is 12221421073. The reversal of 12221421053 is 35012412221.

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

It is a cyclic number.

It is not a de Polignac number, because 12221421053 - 2¹⁸ = 12221158909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221421073) 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, 353273 + ... + 386321.

It is an arithmetic number, because the mean of its divisors is an integer number (1608213000).

Almost surely, 2^12221421053 is an apocalyptic number.

It is an amenable number.

12221421053 is a deficient number, since it is larger than the sum of its proper divisors (644282947).

12221421053 is a wasteful number, since it uses less digits than its factorization.

12221421053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52531.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 12221421053 its reverse (35012412221), we get a palindrome (47233833274).

The spelling of 12221421053 in words is "twelve billion, two hundred twenty-one million, four hundred twenty-one thousand, fifty-three".