12122401112 has 8 divisors (see below), whose sum is σ = 22729502100. Its totient is φ = 6061200552.

The previous prime is 12122401063. The next prime is 12122401129. The reversal of 12122401112 is 21110422121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757650062 + ... + 757650077.

Almost surely, 2^12122401112 is an apocalyptic number.

It is an amenable number.

12122401112 is a deficient number, since it is larger than the sum of its proper divisors (10607100988).

12122401112 is a wasteful number, since it uses less digits than its factorization.

12122401112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515300145 (or 1515300141 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12122401112 its reverse (21110422121), we get a palindrome (33232823233).

The spelling of 12122401112 in words is "twelve billion, one hundred twenty-two million, four hundred one thousand, one hundred twelve".