201199944001238 has 64 divisors (see below), whose sum is σ = 371929145280000. Its totient is φ = 79492125772800.

The previous prime is 201199944001237. The next prime is 201199944001351. The reversal of 201199944001238 is 832100449991102.

It is a super-2 number, since 2×201199944001238² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201199944001238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201199944001237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456916433 + ... + 457356563.

It is an arithmetic number, because the mean of its divisors is an integer number (5811392895000).

Almost surely, 2^{201199944001238} is an apocalyptic number.

201199944001238 is a deficient number, since it is larger than the sum of its proper divisors (170729201278762).

201199944001238 is a wasteful number, since it uses less digits than its factorization.

201199944001238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443413.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The spelling of 201199944001238 in words is "two hundred one trillion, one hundred ninety-nine billion, nine hundred forty-four million, one thousand, two hundred thirty-eight".