722124012 has 48 divisors (see below), whose sum is σ = 1754292960. Its totient is φ = 230909952.

The previous prime is 722123999. The next prime is 722124023. The reversal of 722124012 is 210421227.

It is a super-2 number, since 2×722124012² = 1042926177413952288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 722124012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48028 + ... + 61244.

It is an arithmetic number, because the mean of its divisors is an integer number (36547770).

Almost surely, 2^722124012 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 722124012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877146480).

722124012 is an abundant number, since it is smaller than the sum of its proper divisors (1032168948).

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

722124012 is a wasteful number, since it uses less digits than its factorization.

722124012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13410 (or 13408 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 722124012 is about 26872.3652103792. The cubic root of 722124012 is about 897.1614319782.

Adding to 722124012 its reverse (210421227), we get a palindrome (932545239).

The spelling of 722124012 in words is "seven hundred twenty-two million, one hundred twenty-four thousand, twelve".