15045212422 has 4 divisors (see below), whose sum is σ = 22567818636. Its totient is φ = 7522606210.

The previous prime is 15045212401. The next prime is 15045212461. The reversal of 15045212422 is 22421254051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22421254051 = 7 ⋅3203036293.

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, 3761303104 + ... + 3761303107.

It is an arithmetic number, because the mean of its divisors is an integer number (5641954659).

Almost surely, 2^15045212422 is an apocalyptic number.

15045212422 is a deficient number, since it is larger than the sum of its proper divisors (7522606214).

15045212422 is an equidigital number, since it uses as much as digits as its factorization.

15045212422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522606213.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 15045212422 its reverse (22421254051), we get a palindrome (37466466473).

The spelling of 15045212422 in words is "fifteen billion, forty-five million, two hundred twelve thousand, four hundred twenty-two".