7021120722 has 96 divisors (see below), whose sum is σ = 17857226304. Its totient is φ = 1819843200.

The previous prime is 7021120699. The next prime is 7021120723. The reversal of 7021120722 is 2270211207.

It is a super-2 number, since 2×7021120722² = 98592272385795602568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7021120692 and 7021120701.

It is not an unprimeable number, because it can be changed into a prime (7021120723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1747588 + ... + 1751600.

It is an arithmetic number, because the mean of its divisors is an integer number (186012774).

Almost surely, 2^7021120722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7021120722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8928613152).

7021120722 is an abundant number, since it is smaller than the sum of its proper divisors (10836105582).

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

7021120722 is a wasteful number, since it uses less digits than its factorization.

7021120722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4584 (or 4577 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 7021120722 is about 83792.1280431521. The cubic root of 7021120722 is about 1914.8531790079.

Adding to 7021120722 its reverse (2270211207), we get a palindrome (9291331929).

The spelling of 7021120722 in words is "seven billion, twenty-one million, one hundred twenty thousand, seven hundred twenty-two".