2115451243224 has 48 divisors (see below), whose sum is σ = 6250196857320. Its totient is φ = 641045831040.

The previous prime is 2115451243219. The next prime is 2115451243229. The reversal of 2115451243224 is 4223421545112.

2115451243224 is a `hidden beast` number, since 2 + 1 + 154 + 51 + 2 + 432 + 24 = 666.

It is an interprime number because it is at equal distance from previous prime (2115451243219) and next prime (2115451243229).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115451243229) 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, 1335511357 + ... + 1335512940.

Almost surely, 2^{2115451243224} is an apocalyptic number.

2115451243224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2115451243224 is an abundant number, since it is smaller than the sum of its proper divisors (4134745614096).

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

2115451243224 is a wasteful number, since it uses less digits than its factorization.

2115451243224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671024320 (or 2671024313 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

Adding to 2115451243224 its reverse (4223421545112), we get a palindrome (6338872788336).

The spelling of 2115451243224 in words is "two trillion, one hundred fifteen billion, four hundred fifty-one million, two hundred forty-three thousand, two hundred twenty-four".