722913909121 has 16 divisors (see below), whose sum is σ = 755064253440. Its totient is φ = 690823924560.

The previous prime is 722913909119. The next prime is 722913909163. The reversal of 722913909121 is 121909319227.

It is a cyclic number.

It is not a de Polignac number, because 722913909121 - 2¹ = 722913909119 is a prime.

It is a super-3 number, since 3×722913909121³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722913909721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217024426 + ... + 217027756.

It is an arithmetic number, because the mean of its divisors is an integer number (47191515840).

Almost surely, 2^722913909121 is an apocalyptic number.

It is an amenable number.

722913909121 is a deficient number, since it is larger than the sum of its proper divisors (32150344319).

722913909121 is a wasteful number, since it uses less digits than its factorization.

722913909121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9516.

The product of its (nonzero) digits is 122472, while the sum is 46.

The spelling of 722913909121 in words is "seven hundred twenty-two billion, nine hundred thirteen million, nine hundred nine thousand, one hundred twenty-one".