384972221245 has 12 divisors (see below), whose sum is σ = 487560388860. Its totient is φ = 291768418944.

The previous prime is 384972221213. The next prime is 384972221261. The reversal of 384972221245 is 542122279483.

It can be written as a sum of positive squares in 2 ways, for example, as 68122566009 + 316849655236 = 261003^2 + 562894^2 .

It is not a de Polignac number, because 384972221245 - 2⁵ = 384972221213 is a prime.

It is a super-2 number, since 2×384972221245² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106638700 + ... + 106642309.

It is an arithmetic number, because the mean of its divisors is an integer number (40630032405).

Almost surely, 2^384972221245 is an apocalyptic number.

It is an amenable number.

384972221245 is a deficient number, since it is larger than the sum of its proper divisors (102588167615).

384972221245 is a wasteful number, since it uses less digits than its factorization.

384972221245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213281052 (or 213281033 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 49.

The spelling of 384972221245 in words is "three hundred eighty-four billion, nine hundred seventy-two million, two hundred twenty-one thousand, two hundred forty-five".