2242140021 has 40 divisors (see below), whose sum is σ = 3669494400. Its totient is φ = 1353058560.

The previous prime is 2242139993. The next prime is 2242140053. The reversal of 2242140021 is 1200412422.

2242140021 is a `hidden beast` number, since 2 + 242 + 1 + 400 + 21 = 666.

2242140021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2242140021 - 2²³ = 2233751413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2242139976 and 2242140003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242140721) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 207685 + ... + 218213.

It is an arithmetic number, because the mean of its divisors is an integer number (91737360).

Almost surely, 2^2242140021 is an apocalyptic number.

It is an amenable number.

2242140021 is a deficient number, since it is larger than the sum of its proper divisors (1427354379).

2242140021 is a wasteful number, since it uses less digits than its factorization.

2242140021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10791 (or 10782 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2242140021 is about 47351.2409657867. The cubic root of 2242140021 is about 1308.8430670839.

Adding to 2242140021 its reverse (1200412422), we get a palindrome (3442552443).

The spelling of 2242140021 in words is "two billion, two hundred forty-two million, one hundred forty thousand, twenty-one".