15412221451 has 12 divisors (see below), whose sum is σ = 17025862000. Its totient is φ = 13940681040.

The previous prime is 15412221427. The next prime is 15412221463.

15412221451 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 15412221451 - 2¹⁹ = 15411697163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15412221491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 295956 + ... + 344113.

Almost surely, 2^15412221451 is an apocalyptic number.

15412221451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15412221451 is a deficient number, since it is larger than the sum of its proper divisors (1613640549).

15412221451 is a wasteful number, since it uses less digits than its factorization.

15412221451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640290 (or 640279 counting only the distinct ones).

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

The spelling of 15412221451 in words is "fifteen billion, four hundred twelve million, two hundred twenty-one thousand, four hundred fifty-one".