2241221240 has 32 divisors (see below), whose sum is σ = 5049054000. Its totient is φ = 895367424.

The previous prime is 2241221207. The next prime is 2241221243. The reversal of 2241221240 is 421221422.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2241221243) 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, 2270 + ... + 66989.

Almost surely, 2^2241221240 is an apocalyptic number.

2241221240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2241221240 is an abundant number, since it is smaller than the sum of its proper divisors (2807832760).

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

2241221240 is a wasteful number, since it uses less digits than its factorization.

2241221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70079 (or 70075 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2241221240 is about 47341.5382090612. The cubic root of 2241221240 is about 1308.6642640317.

Adding to 2241221240 its reverse (421221422), we get a palindrome (2662442662).

The spelling of 2241221240 in words is "two billion, two hundred forty-one million, two hundred twenty-one thousand, two hundred forty".