40221133221 has 16 divisors (see below), whose sum is σ = 56872810368. Its totient is φ = 25196774400.

The previous prime is 40221133163. The next prime is 40221133237. The reversal of 40221133221 is 12233112204.

It is not a de Polignac number, because 40221133221 - 2⁹ = 40221132709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221133721) 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, 592740 + ... + 657101.

It is an arithmetic number, because the mean of its divisors is an integer number (3554550648).

Almost surely, 2^40221133221 is an apocalyptic number.

It is an amenable number.

40221133221 is a deficient number, since it is larger than the sum of its proper divisors (16651677147).

40221133221 is a wasteful number, since it uses less digits than its factorization.

40221133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250492.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 40221133221 its reverse (12233112204), we get a palindrome (52454245425).

The spelling of 40221133221 in words is "forty billion, two hundred twenty-one million, one hundred thirty-three thousand, two hundred twenty-one".