1065211722 has 80 divisors (see below), whose sum is σ = 2486892672. Its totient is φ = 340472160.

The previous prime is 1065211711. The next prime is 1065211753. The reversal of 1065211722 is 2271125601.

1065211722 is a `hidden beast` number, since 1 + 0 + 652 + 1 + 1 + 7 + 2 + 2 = 666.

It is a super-2 number, since 2×1065211722² = 2269352025372410568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 424323 + ... + 426825.

Almost surely, 2^1065211722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1065211722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1243446336).

1065211722 is an abundant number, since it is smaller than the sum of its proper divisors (1421680950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1065211722 is a wasteful number, since it uses less digits than its factorization.

1065211722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625 (or 2616 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 1065211722 is about 32637.5814361297. The cubic root of 1065211722 is about 1021.2811410517.

The spelling of 1065211722 in words is "one billion, sixty-five million, two hundred eleven thousand, seven hundred twenty-two".