12112554421 has 8 divisors (see below), whose sum is σ = 13217716800. Its totient is φ = 11008062240.

The previous prime is 12112554409. The next prime is 12112554431. The reversal of 12112554421 is 12445521121.

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 12112554421 - 2¹¹ = 12112552373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12112554421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112554431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129376 + ... + 202393.

It is an arithmetic number, because the mean of its divisors is an integer number (1652214600).

Almost surely, 2^12112554421 is an apocalyptic number.

12112554421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12112554421 is a deficient number, since it is larger than the sum of its proper divisors (1105162379).

12112554421 is a wasteful number, since it uses less digits than its factorization.

12112554421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335099.

The product of its digits is 3200, while the sum is 28.

The spelling of 12112554421 in words is "twelve billion, one hundred twelve million, five hundred fifty-four thousand, four hundred twenty-one".