40240222021 has 8 divisors (see below), whose sum is σ = 40772090880. Its totient is φ = 39708915792.

The previous prime is 40240221991. The next prime is 40240222051. The reversal of 40240222021 is 12022204204.

It is an interprime number because it is at equal distance from previous prime (40240221991) and next prime (40240222051).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40240222021 - 2⁷ = 40240221893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40240222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40240222051) 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, 4311 + ... + 283723.

It is an arithmetic number, because the mean of its divisors is an integer number (5096511360).

Almost surely, 2^40240222021 is an apocalyptic number.

It is an amenable number.

40240222021 is a deficient number, since it is larger than the sum of its proper divisors (531868859).

40240222021 is a wasteful number, since it uses less digits than its factorization.

40240222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281315.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 40240222021 its reverse (12022204204), we get a palindrome (52262426225).

The spelling of 40240222021 in words is "forty billion, two hundred forty million, two hundred twenty-two thousand, twenty-one".