201100000442 has 16 divisors (see below), whose sum is σ = 331091584992. Its totient is φ = 90848297520.

The previous prime is 201100000441. The next prime is 201100000537. The reversal of 201100000442 is 244000001102.

It is not an unprimeable number, because it can be changed into a prime (201100000441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28036013 + ... + 28043184.

It is an arithmetic number, because the mean of its divisors is an integer number (20693224062).

Almost surely, 2^201100000442 is an apocalyptic number.

201100000442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201100000442 is a deficient number, since it is larger than the sum of its proper divisors (129991584550).

201100000442 is a wasteful number, since it uses less digits than its factorization.

201100000442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56079373.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 201100000442 its reverse (244000001102), we get a palindrome (445100001544).

The spelling of 201100000442 in words is "two hundred one billion, one hundred million, four hundred forty-two", and thus it is an aban number.