720912212001 has 6 divisors (see below), whose sum is σ = 1041317639570. Its totient is φ = 480608141328.

The previous prime is 720912211993. The next prime is 720912212021. The reversal of 720912212001 is 100212219027.

720912212001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 549992808225 + 170919403776 = 741615^2 + 413424^2 .

It is not a de Polignac number, because 720912212001 - 2³ = 720912211993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720912212021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40050678436 + ... + 40050678453.

Almost surely, 2^720912212001 is an apocalyptic number.

It is an amenable number.

720912212001 is a deficient number, since it is larger than the sum of its proper divisors (320405427569).

720912212001 is a wasteful number, since it uses less digits than its factorization.

720912212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80101356895 (or 80101356892 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The spelling of 720912212001 in words is "seven hundred twenty billion, nine hundred twelve million, two hundred twelve thousand, one".