2124453425221 has 8 divisors (see below), whose sum is σ = 2216835869184. Its totient is φ = 2032072223280.

The previous prime is 2124453425209. The next prime is 2124453425233. The reversal of 2124453425221 is 1225243544212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2124453425209) and next prime (2124453425233).

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

It is a cyclic number.

It is not a de Polignac number, because 2124453425221 - 2²³ = 2124445036613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124453423221) 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, 5492620 + ... + 5866666.

It is an arithmetic number, because the mean of its divisors is an integer number (277104483648).

Almost surely, 2^{2124453425221} is an apocalyptic number.

It is an amenable number.

2124453425221 is a deficient number, since it is larger than the sum of its proper divisors (92382443963).

2124453425221 is a wasteful number, since it uses less digits than its factorization.

2124453425221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621011.

The product of its digits is 153600, while the sum is 37.

Adding to 2124453425221 its reverse (1225243544212), we get a palindrome (3349696969433).

The spelling of 2124453425221 in words is "two trillion, one hundred twenty-four billion, four hundred fifty-three million, four hundred twenty-five thousand, two hundred twenty-one".