12421055572 has 12 divisors (see below), whose sum is σ = 22438036096. Its totient is φ = 6010188120.

The previous prime is 12421055531. The next prime is 12421055587. The reversal of 12421055572 is 27555012421.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 50084778 + ... + 50085025.

Almost surely, 2^12421055572 is an apocalyptic number.

It is an amenable number.

12421055572 is a deficient number, since it is larger than the sum of its proper divisors (10016980524).

12421055572 is a wasteful number, since it uses less digits than its factorization.

12421055572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100169838 (or 100169836 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

Adding to 12421055572 its reverse (27555012421), we get a palindrome (39976067993).

The spelling of 12421055572 in words is "twelve billion, four hundred twenty-one million, fifty-five thousand, five hundred seventy-two".