40220312221 has 8 divisors (see below), whose sum is σ = 42001311744. Its totient is φ = 38442003600.

The previous prime is 40220312173. The next prime is 40220312233. The reversal of 40220312221 is 12221302204.

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 40220312221 - 2¹⁵ = 40220279453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220312261) 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, 642141 + ... + 701986.

It is an arithmetic number, because the mean of its divisors is an integer number (5250163968).

Almost surely, 2^40220312221 is an apocalyptic number.

It is an amenable number.

40220312221 is a deficient number, since it is larger than the sum of its proper divisors (1780999523).

40220312221 is a wasteful number, since it uses less digits than its factorization.

40220312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345451.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 40220312221 its reverse (12221302204), we get a palindrome (52441614425).

The spelling of 40220312221 in words is "forty billion, two hundred twenty million, three hundred twelve thousand, two hundred twenty-one".