1442201111 has 16 divisors (see below), whose sum is σ = 1577740416. Its totient is φ = 1310298336.

The previous prime is 1442201107. The next prime is 1442201129. The reversal of 1442201111 is 1111022441.

It is a cyclic number.

It is not a de Polignac number, because 1442201111 - 2² = 1442201107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442201111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442201191) 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 15 ways as a sum of consecutive naturals, for example, 302996 + ... + 307718.

It is an arithmetic number, because the mean of its divisors is an integer number (98608776).

Almost surely, 2^1442201111 is an apocalyptic number.

1442201111 is a deficient number, since it is larger than the sum of its proper divisors (135539305).

1442201111 is a wasteful number, since it uses less digits than its factorization.

1442201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5102.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1442201111 is about 37976.3230315943. The cubic root of 1442201111 is about 1129.8183097339.

Adding to 1442201111 its reverse (1111022441), we get a palindrome (2553223552).

The spelling of 1442201111 in words is "one billion, four hundred forty-two million, two hundred one thousand, one hundred eleven".