2124421331 has 8 divisors (see below), whose sum is σ = 2237566800. Its totient is φ = 2011409280.

The previous prime is 2124421279. The next prime is 2124421339. The reversal of 2124421331 is 1331244212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2124421331 is a prime.

It is a super-2 number, since 2×2124421331² = 9026331983215623122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2124421297 and 2124421306.

It is not an unprimeable number, because it can be changed into a prime (2124421339) 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, 215 + ... + 65183.

It is an arithmetic number, because the mean of its divisors is an integer number (279695850).

Almost surely, 2^2124421331 is an apocalyptic number.

2124421331 is a deficient number, since it is larger than the sum of its proper divisors (113145469).

2124421331 is a wasteful number, since it uses less digits than its factorization.

2124421331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66709.

The product of its digits is 1152, while the sum is 23.

The square root of 2124421331 is about 46091.4453125523. The cubic root of 2124421331 is about 1285.5240850524.

Adding to 2124421331 its reverse (1331244212), we get a palindrome (3455665543).

The spelling of 2124421331 in words is "two billion, one hundred twenty-four million, four hundred twenty-one thousand, three hundred thirty-one".