7222019638940 has 48 divisors (see below), whose sum is σ = 15317203192704. Its totient is φ = 2860056192000.

The previous prime is 7222019638921. The next prime is 7222019638943. The reversal of 7222019638940 is 498369102227.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222019638943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43583645 + ... + 43749035.

It is an arithmetic number, because the mean of its divisors is an integer number (319108399848).

Almost surely, 2^{7222019638940} is an apocalyptic number.

It is an amenable number.

7222019638940 is an abundant number, since it is smaller than the sum of its proper divisors (8095183553764).

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

7222019638940 is a wasteful number, since it uses less digits than its factorization.

7222019638940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187118 (or 187116 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 7222019638940 in words is "seven trillion, two hundred twenty-two billion, nineteen million, six hundred thirty-eight thousand, nine hundred forty".