971222036 has 12 divisors (see below), whose sum is σ = 1799617428. Its totient is φ = 457045632.

The previous prime is 971222029. The next prime is 971222039. The reversal of 971222036 is 630222179.

It is a happy number.

971222036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 887682436 + 83539600 = 29794^2 + 9140^2 .

It is a junction number, because it is equal to n+sod(n) for n = 971221993 and 971222011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971222039) 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, 7141271 + ... + 7141406.

It is an arithmetic number, because the mean of its divisors is an integer number (149968119).

Almost surely, 2^971222036 is an apocalyptic number.

It is an amenable number.

971222036 is a deficient number, since it is larger than the sum of its proper divisors (828395392).

971222036 is a wasteful number, since it uses less digits than its factorization.

971222036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14282698 (or 14282696 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 971222036 is about 31164.4354352842. The cubic root of 971222036 is about 990.3138262976.

The spelling of 971222036 in words is "nine hundred seventy-one million, two hundred twenty-two thousand, thirty-six".