213833148722 has 18 divisors (see below), whose sum is σ = 324939746943. Its totient is φ = 105537695484.

The previous prime is 213833148701. The next prime is 213833148743. The reversal of 213833148722 is 227841338312.

213833148722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213833148701) and next prime (213833148743).

It can be written as a sum of positive squares in only one way, i.e., 106916574361 + 106916574361 = 326981^2 + 326981^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=326981.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 51660929 + ... + 51665067.

Almost surely, 2^213833148722 is an apocalyptic number.

213833148722 is a deficient number, since it is larger than the sum of its proper divisors (111106598221).

213833148722 is an frugal number, since it uses more digits than its factorization.

213833148722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8438 (or 4220 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The spelling of 213833148722 in words is "two hundred thirteen billion, eight hundred thirty-three million, one hundred forty-eight thousand, seven hundred twenty-two".