40220101221 has 8 divisors (see below), whose sum is σ = 53636844864. Its totient is φ = 26808379200.

The previous prime is 40220101199. The next prime is 40220101241. The reversal of 40220101221 is 12210102204.

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

It is not a de Polignac number, because 40220101221 - 2⁷ = 40220101093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40220101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220101241) 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, 1236676 + ... + 1268781.

It is an arithmetic number, because the mean of its divisors is an integer number (6704605608).

Almost surely, 2^40220101221 is an apocalyptic number.

It is an amenable number.

40220101221 is a deficient number, since it is larger than the sum of its proper divisors (13416743643).

40220101221 is a wasteful number, since it uses less digits than its factorization.

40220101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510811.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 40220101221 its reverse (12210102204), we get a palindrome (52430203425).

The spelling of 40220101221 in words is "forty billion, two hundred twenty million, one hundred one thousand, two hundred twenty-one".