201151001244 has 24 divisors (see below), whose sum is σ = 469446178320. Its totient is φ = 67036927744.

The previous prime is 201151001243. The next prime is 201151001357. The reversal of 201151001244 is 442100151102.

201151001244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 201151001244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201151001243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1613139 + ... + 1733354.

It is an arithmetic number, because the mean of its divisors is an integer number (19560257430).

Almost surely, 2^201151001244 is an apocalyptic number.

It is an amenable number.

201151001244 is an abundant number, since it is smaller than the sum of its proper divisors (268295177076).

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

201151001244 is a wasteful number, since it uses less digits than its factorization.

201151001244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351509 (or 3351507 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 201151001244 its reverse (442100151102), we get a palindrome (643251152346).

The spelling of 201151001244 in words is "two hundred one billion, one hundred fifty-one million, one thousand, two hundred forty-four".