40221120213 has 32 divisors (see below), whose sum is σ = 60322147200. Its totient is φ = 26484480000.

The previous prime is 40221120187. The next prime is 40221120223. The reversal of 40221120213 is 31202112204.

It is a happy number.

It is not a de Polignac number, because 40221120213 - 2²⁹ = 39684249301 is a prime.

It is a super-2 number, since 2×40221120213² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221120223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1125013 + ... + 1160213.

It is an arithmetic number, because the mean of its divisors is an integer number (1885067100).

Almost surely, 2^40221120213 is an apocalyptic number.

It is an amenable number.

40221120213 is a deficient number, since it is larger than the sum of its proper divisors (20101026987).

40221120213 is a wasteful number, since it uses less digits than its factorization.

40221120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35730 (or 35724 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 40221120213 its reverse (31202112204), we get a palindrome (71423232417).

The spelling of 40221120213 in words is "forty billion, two hundred twenty-one million, one hundred twenty thousand, two hundred thirteen".