2421221310 has 48 divisors (see below), whose sum is σ = 6512257440. Its totient is φ = 623394240.

The previous prime is 2421221279. The next prime is 2421221317. The reversal of 2421221310 is 131221242.

It is a happy number.

2421221310 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2421221310² = 11724625263996232200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421221317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 461226 + ... + 466445.

It is an arithmetic number, because the mean of its divisors is an integer number (135672030).

Almost surely, 2^2421221310 is an apocalyptic number.

2421221310 is an abundant number, since it is smaller than the sum of its proper divisors (4091036130).

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

2421221310 is a wasteful number, since it uses less digits than its factorization.

2421221310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927713 (or 927710 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2421221310 is about 49205.9072673190. The cubic root of 2421221310 is about 1342.8005049136.

Adding to 2421221310 its reverse (131221242), we get a palindrome (2552442552).

The spelling of 2421221310 in words is "two billion, four hundred twenty-one million, two hundred twenty-one thousand, three hundred ten".