15421322142422 has 8 divisors (see below), whose sum is σ = 26436552244176. Its totient is φ = 6609138061032.

The previous prime is 15421322142341. The next prime is 15421322142427. The reversal of 15421322142422 is 22424122312451.

It is a happy number.

15421322142422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15421322142427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550761505073 + ... + 550761505100.

It is an arithmetic number, because the mean of its divisors is an integer number (3304569030522).

Almost surely, 2^{15421322142422} is an apocalyptic number.

15421322142422 is a deficient number, since it is larger than the sum of its proper divisors (11015230101754).

15421322142422 is a wasteful number, since it uses less digits than its factorization.

15421322142422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101523010182.

The product of its digits is 61440, while the sum is 35.

Adding to 15421322142422 its reverse (22424122312451), we get a palindrome (37845444454873).

The spelling of 15421322142422 in words is "fifteen trillion, four hundred twenty-one billion, three hundred twenty-two million, one hundred forty-two thousand, four hundred twenty-two".