2031222540 has 24 divisors (see below), whose sum is σ = 5687423280. Its totient is φ = 541659328.

The previous prime is 2031222539. The next prime is 2031222541. The reversal of 2031222540 is 452221302.

It is an interprime number because it is at equal distance from previous prime (2031222539) and next prime (2031222541).

It is not an unprimeable number, because it can be changed into a prime (2031222541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16926795 + ... + 16926914.

It is an arithmetic number, because the mean of its divisors is an integer number (236975970).

Almost surely, 2^2031222540 is an apocalyptic number.

2031222540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031222540 is an abundant number, since it is smaller than the sum of its proper divisors (3656200740).

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

2031222540 is a wasteful number, since it uses less digits than its factorization.

2031222540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33853721 (or 33853719 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2031222540 is about 45069.0863009225. The cubic root of 2031222540 is about 1266.4435478044.

Adding to 2031222540 its reverse (452221302), we get a palindrome (2483443842).

The spelling of 2031222540 in words is "two billion, thirty-one million, two hundred twenty-two thousand, five hundred forty".