201044442442 has 4 divisors (see below), whose sum is σ = 301566663666. Its totient is φ = 100522221220.

The previous prime is 201044442433. The next prime is 201044442523. The reversal of 201044442442 is 244244440102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 133574899441 + 67469543001 = 365479^2 + 259749^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50261110609 + ... + 50261110612.

Almost surely, 2^201044442442 is an apocalyptic number.

201044442442 is a deficient number, since it is larger than the sum of its proper divisors (100522221224).

201044442442 is a wasteful number, since it uses less digits than its factorization.

201044442442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100522221223.

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 201044442442 its reverse (244244440102), we get a palindrome (445288882544).

The spelling of 201044442442 in words is "two hundred one billion, forty-four million, four hundred forty-two thousand, four hundred forty-two".