1423221232412 has 24 divisors (see below), whose sum is σ = 2880736957056. Its totient is φ = 602603137008.

The previous prime is 1423221232403. The next prime is 1423221232421. The reversal of 1423221232412 is 2142321223241.

It is an interprime number because it is at equal distance from previous prime (1423221232403) and next prime (1423221232421).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306198458 + ... + 306203105.

It is an arithmetic number, because the mean of its divisors is an integer number (120030706544).

Almost surely, 2^{1423221232412} is an apocalyptic number.

It is an amenable number.

1423221232412 is an abundant number, since it is smaller than the sum of its proper divisors (1457515724644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1423221232412 is a wasteful number, since it uses less digits than its factorization.

1423221232412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612401657 (or 612401655 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

Adding to 1423221232412 its reverse (2142321223241), we get a palindrome (3565542455653).

The spelling of 1423221232412 in words is "one trillion, four hundred twenty-three billion, two hundred twenty-one million, two hundred thirty-two thousand, four hundred twelve".