12221421403102 has 8 divisors (see below), whose sum is σ = 18332859097800. Its totient is φ = 6110468370504.

The previous prime is 12221421403099. The next prime is 12221421403111. The reversal of 12221421403102 is 20130412412221.

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

It is a super-2 number, since 2×12221421403102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121102477 + ... + 121203352.

It is an arithmetic number, because the mean of its divisors is an integer number (2291607387225).

Almost surely, 2^{12221421403102} is an apocalyptic number.

12221421403102 is a deficient number, since it is larger than the sum of its proper divisors (6111437694698).

12221421403102 is a wasteful number, since it uses less digits than its factorization.

12221421403102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242331050.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 12221421403102 its reverse (20130412412221), we get a palindrome (32351833815323).

The spelling of 12221421403102 in words is "twelve trillion, two hundred twenty-one billion, four hundred twenty-one million, four hundred three thousand, one hundred two".