7222150721436 has 96 divisors (see below), whose sum is σ = 19734581088768. Its totient is φ = 2012553354240.

The previous prime is 7222150721431. The next prime is 7222150721447. The reversal of 7222150721436 is 6341270512227.

It is a super-2 number, since 2×7222150721436² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222150721431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11517831 + ... + 12128673.

It is an arithmetic number, because the mean of its divisors is an integer number (205568553008).

Almost surely, 2^{7222150721436} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7222150721436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9867290544384).

7222150721436 is an abundant number, since it is smaller than the sum of its proper divisors (12512430367332).

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

7222150721436 is a wasteful number, since it uses less digits than its factorization.

7222150721436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614331 (or 614329 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 7222150721436 in words is "seven trillion, two hundred twenty-two billion, one hundred fifty million, seven hundred twenty-one thousand, four hundred thirty-six".