2221240413 has 24 divisors (see below), whose sum is σ = 3563995680. Its totient is φ = 1225509600.

The previous prime is 2221240339. The next prime is 2221240457. The reversal of 2221240413 is 3140421222.

It is not a de Polignac number, because 2221240413 - 2¹² = 2221236317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2221240413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221240013) 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, 256263 + ... + 264788.

It is an arithmetic number, because the mean of its divisors is an integer number (148499820).

Almost surely, 2^2221240413 is an apocalyptic number.

It is an amenable number.

2221240413 is a deficient number, since it is larger than the sum of its proper divisors (1342755267).

2221240413 is a wasteful number, since it uses less digits than its factorization.

2221240413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521097 (or 521090 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2221240413 is about 47130.0372692405. The cubic root of 2221240413 is about 1304.7636694220.

Adding to 2221240413 its reverse (3140421222), we get a palindrome (5361661635).

The spelling of 2221240413 in words is "two billion, two hundred twenty-one million, two hundred forty thousand, four hundred thirteen".