10722385223891 has 4 divisors (see below), whose sum is σ = 11697147516984. Its totient is φ = 9747622930800.

The previous prime is 10722385223821. The next prime is 10722385223933. The reversal of 10722385223891 is 19832258322701.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10722385223891 - 2³⁸ = 10447507316947 is a prime.

It is a super-2 number, since 2×10722385223891² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10722385223801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487381146530 + ... + 487381146551.

It is an arithmetic number, because the mean of its divisors is an integer number (2924286879246).

Almost surely, 2^{10722385223891} is an apocalyptic number.

10722385223891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10722385223891 is a deficient number, since it is larger than the sum of its proper divisors (974762293093).

10722385223891 is an equidigital number, since it uses as much as digits as its factorization.

10722385223891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974762293092.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 10722385223891 in words is "ten trillion, seven hundred twenty-two billion, three hundred eighty-five million, two hundred twenty-three thousand, eight hundred ninety-one".