39972222229 has 4 divisors (see below), whose sum is σ = 39974177376. Its totient is φ = 39970267084.

The previous prime is 39972222203. The next prime is 39972222253. The reversal of 39972222229 is 92222227993.

39972222229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39972222229 - 2⁵ = 39972222197 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39972222259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946579 + ... + 987904.

It is an arithmetic number, because the mean of its divisors is an integer number (9993544344).

Almost surely, 2^39972222229 is an apocalyptic number.

It is an amenable number.

39972222229 is a deficient number, since it is larger than the sum of its proper divisors (1955147).

39972222229 is a wasteful number, since it uses less digits than its factorization.

39972222229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955146.

The product of its digits is 979776, while the sum is 49.

The spelling of 39972222229 in words is "thirty-nine billion, nine hundred seventy-two million, two hundred twenty-two thousand, two hundred twenty-nine".