201899246224 has 45 divisors (see below), whose sum is σ = 423634241979. Its totient is φ = 93173483520.

The previous prime is 201899246207. The next prime is 201899246239. The reversal of 201899246224 is 422642998102.

The square root of 201899246224 is 449332.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 144506419600 + 57392826624 = 380140^2 + 239568^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23360944 + ... + 23369584.

Almost surely, 2^201899246224 is an apocalyptic number.

201899246224 is the 449332-nd square number.

It is an amenable number.

201899246224 is an abundant number, since it is smaller than the sum of its proper divisors (221734995755).

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

201899246224 is an frugal number, since it uses more digits than its factorization.

201899246224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17316 (or 8656 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

Multiplying 201899246224 by its sum of digits (49), we get a square (9893063064976 = 3145324²).

The spelling of 201899246224 in words is "two hundred one billion, eight hundred ninety-nine million, two hundred forty-six thousand, two hundred twenty-four".