40013200221 has 16 divisors (see below), whose sum is σ = 53833481280. Its totient is φ = 26434284800.

The previous prime is 40013200217. The next prime is 40013200229. The reversal of 40013200221 is 12200231004.

It is a cyclic number.

It is not a de Polignac number, because 40013200221 - 2² = 40013200217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40013200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013200229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2670970 + ... + 2685908.

It is an arithmetic number, because the mean of its divisors is an integer number (3364592580).

Almost surely, 2^40013200221 is an apocalyptic number.

It is an amenable number.

40013200221 is a deficient number, since it is larger than the sum of its proper divisors (13820281059).

40013200221 is a wasteful number, since it uses less digits than its factorization.

40013200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22956.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 40013200221 its reverse (12200231004), we get a palindrome (52213431225).

The spelling of 40013200221 in words is "forty billion, thirteen million, two hundred thousand, two hundred twenty-one".