7021968922 has 4 divisors (see below), whose sum is σ = 10532953386. Its totient is φ = 3510984460.

The previous prime is 7021968917. The next prime is 7021968971. The reversal of 7021968922 is 2298691207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2298691207 = 1319 ⋅1742753.

It can be written as a sum of positive squares in only one way, i.e., 6945388921 + 76580001 = 83339^2 + 8751^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1755492229 + ... + 1755492232.

Almost surely, 2^7021968922 is an apocalyptic number.

7021968922 is a deficient number, since it is larger than the sum of its proper divisors (3510984464).

7021968922 is a wasteful number, since it uses less digits than its factorization.

7021968922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510984463.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 7021968922 is about 83797.1892249376. The cubic root of 7021968922 is about 1914.9302850774.

The spelling of 7021968922 in words is "seven billion, twenty-one million, nine hundred sixty-eight thousand, nine hundred twenty-two".