2124554122440 has 112 divisors (see below), whose sum is σ = 7167091628700. Its totient is φ = 566547758208.

The previous prime is 2124554122423. The next prime is 2124554122489. The reversal of 2124554122440 is 442214554212.

2124554122440 is a `hidden beast` number, since 2 + 1 + 2 + 45 + 54 + 122 + 440 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2104246162404 + 20307960036 = 1450602^2 + 142506^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2124554122395 and 2124554122404.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 36400095 + ... + 36458414.

Almost surely, 2^{2124554122440} is an apocalyptic number.

2124554122440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124554122440 is an abundant number, since it is smaller than the sum of its proper divisors (5042537506260).

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

2124554122440 is an equidigital number, since it uses as much as digits as its factorization.

2124554122440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72858538 (or 72858519 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

Adding to 2124554122440 its reverse (442214554212), we get a palindrome (2566768676652).

The spelling of 2124554122440 in words is "two trillion, one hundred twenty-four billion, five hundred fifty-four million, one hundred twenty-two thousand, four hundred forty".