40212563221 has 8 divisors (see below), whose sum is σ = 41349359520. Its totient is φ = 39078397008.

The previous prime is 40212563207. The next prime is 40212563231. The reversal of 40212563221 is 12236521204.

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 40212563221 - 2³³ = 31622628629 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 40212563221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40212563231) 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, 626491 + ... + 687688.

It is an arithmetic number, because the mean of its divisors is an integer number (5168669940).

Almost surely, 2^40212563221 is an apocalyptic number.

It is an amenable number.

40212563221 is a deficient number, since it is larger than the sum of its proper divisors (1136796299).

40212563221 is a wasteful number, since it uses less digits than its factorization.

40212563221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315043.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 40212563221 in words is "forty billion, two hundred twelve million, five hundred sixty-three thousand, two hundred twenty-one".