40201423221 has 8 divisors (see below), whose sum is σ = 53612320320. Its totient is φ = 26795737472.

The previous prime is 40201423219. The next prime is 40201423373. The reversal of 40201423221 is 12232410204.

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

It is a cyclic number.

It is not a de Polignac number, because 40201423221 - 2¹ = 40201423219 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40201423211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1284801 + ... + 1315718.

It is an arithmetic number, because the mean of its divisors is an integer number (6701540040).

Almost surely, 2^40201423221 is an apocalyptic number.

It is an amenable number.

40201423221 is a deficient number, since it is larger than the sum of its proper divisors (13410897099).

40201423221 is a wasteful number, since it uses less digits than its factorization.

40201423221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605675.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 40201423221 its reverse (12232410204), we get a palindrome (52433833425).

It can be divided in two parts, 4020 and 1423221, that added together give a palindrome (1427241).

The spelling of 40201423221 in words is "forty billion, two hundred one million, four hundred twenty-three thousand, two hundred twenty-one".