12055421692 has 12 divisors (see below), whose sum is σ = 21587615896. Its totient is φ = 5887531440.

The previous prime is 12055421647. The next prime is 12055421731. The reversal of 12055421692 is 29612455021.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 35044659 + ... + 35045002.

Almost surely, 2^12055421692 is an apocalyptic number.

It is an amenable number.

12055421692 is a deficient number, since it is larger than the sum of its proper divisors (9532194204).

12055421692 is a wasteful number, since it uses less digits than its factorization.

12055421692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70089708 (or 70089706 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 12055421692 in words is "twelve billion, fifty-five million, four hundred twenty-one thousand, six hundred ninety-two".