722121120012 has 24 divisors (see below), whose sum is σ = 1684964397312. Its totient is φ = 240704880400.

The previous prime is 722121120011. The next prime is 722121120047. The reversal of 722121120012 is 210021121227.

It is not an unprimeable number, because it can be changed into a prime (722121120011) 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, 1695937 + ... + 2078567.

It is an arithmetic number, because the mean of its divisors is an integer number (70206849888).

Almost surely, 2^722121120012 is an apocalyptic number.

It is an amenable number.

722121120012 is an abundant number, since it is smaller than the sum of its proper divisors (962843277300).

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

722121120012 is a wasteful number, since it uses less digits than its factorization.

722121120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539909 (or 539907 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

Adding to 722121120012 its reverse (210021121227), we get a palindrome (932142241239).

The spelling of 722121120012 in words is "seven hundred twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, twelve".