7221913132 has 24 divisors (see below), whose sum is σ = 14450494464. Its totient is φ = 3093676752.

The previous prime is 7221913121. The next prime is 7221913133. The reversal of 7221913132 is 2313191227.

It is a junction number, because it is equal to n+sod(n) for n = 7221913094 and 7221913103.

It is not an unprimeable number, because it can be changed into a prime (7221913133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3363 + ... + 120229.

It is an arithmetic number, because the mean of its divisors is an integer number (602103936).

Almost surely, 2^7221913132 is an apocalyptic number.

It is an amenable number.

7221913132 is an abundant number, since it is smaller than the sum of its proper divisors (7228581332).

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

7221913132 is a wasteful number, since it uses less digits than its factorization.

7221913132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119085 (or 119083 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 7221913132 is about 84981.8400130287. The cubic root of 7221913132 is about 1932.9357570763.

The spelling of 7221913132 in words is "seven billion, two hundred twenty-one million, nine hundred thirteen thousand, one hundred thirty-two".