722229921054720 has 1216 divisors, whose sum is σ = 2770003004106240. Its totient is φ = 177487610904576.

The previous prime is 722229921054709. The next prime is 722229921054737. The reversal of 722229921054720 is 27450129922227.

It is a happy number.

722229921054720 is a `hidden beast` number, since 7 + 2 + 2 + 2 + 2 + 9 + 92 + 1 + 0 + 547 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 452241652962 + ... + 452241654558.

Almost surely, 2^{722229921054720} 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 722229921054720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385001502053120).

722229921054720 is an abundant number, since it is smaller than the sum of its proper divisors (2047773083051520).

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

722229921054720 is an equidigital number, since it uses as much as digits as its factorization.

722229921054720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643 (or 2603 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 722229921054720 in words is "seven hundred twenty-two trillion, two hundred twenty-nine billion, nine hundred twenty-one million, fifty-four thousand, seven hundred twenty".