40221210004 has 24 divisors (see below), whose sum is σ = 72827937000. Its totient is φ = 19413488640.

The previous prime is 40221209983. The next prime is 40221210019. The reversal of 40221210004 is 40001212204.

It can be written as a sum of positive squares in 4 ways, for example, as 10836393604 + 29384816400 = 104098^2 + 171420^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40221210004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648844 + ... + 708124.

It is an arithmetic number, because the mean of its divisors is an integer number (3034497375).

Almost surely, 2^40221210004 is an apocalyptic number.

It is an amenable number.

40221210004 is a deficient number, since it is larger than the sum of its proper divisors (32606726996).

40221210004 is a wasteful number, since it uses less digits than its factorization.

40221210004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65163 (or 65161 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 40221210004 its reverse (40001212204), we get a palindrome (80222422208).

The spelling of 40221210004 in words is "forty billion, two hundred twenty-one million, two hundred ten thousand, four".