201100001244 has 48 divisors (see below), whose sum is σ = 476980331520. Its totient is φ = 65933075520.

The previous prime is 201100001183. The next prime is 201100001251. The reversal of 201100001244 is 442100001102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153967 + ... + 652614.

It is an arithmetic number, because the mean of its divisors is an integer number (9937090240).

Almost surely, 2^201100001244 is an apocalyptic number.

It is an amenable number.

201100001244 is an abundant number, since it is smaller than the sum of its proper divisors (275880330276).

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

201100001244 is a wasteful number, since it uses less digits than its factorization.

201100001244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806930 (or 806928 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201100001244 its reverse (442100001102), we get a palindrome (643200002346).

The spelling of 201100001244 in words is "two hundred one billion, one hundred million, one thousand, two hundred forty-four".