15421225011 has 8 divisors (see below), whose sum is σ = 21771141264. Its totient is φ = 9676062720.

The previous prime is 15421225003. The next prime is 15421225031. The reversal of 15421225011 is 11052212451.

It is a happy number.

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

It is not a de Polignac number, because 15421225011 - 2³ = 15421225003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15421225031) 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, 151188430 + ... + 151188531.

It is an arithmetic number, because the mean of its divisors is an integer number (2721392658).

Almost surely, 2^15421225011 is an apocalyptic number.

15421225011 is a deficient number, since it is larger than the sum of its proper divisors (6349916253).

15421225011 is a wasteful number, since it uses less digits than its factorization.

15421225011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302376981.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 15421225011 its reverse (11052212451), we get a palindrome (26473437462).

The spelling of 15421225011 in words is "fifteen billion, four hundred twenty-one million, two hundred twenty-five thousand, eleven".