2231201142 has 24 divisors (see below), whose sum is σ = 5118638616. Its totient is φ = 699984576.

The previous prime is 2231201123. The next prime is 2231201197. The reversal of 2231201142 is 2411021322.

It is a happy number.

It is a super-3 number, since 3×2231201142³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3645448 + ... + 3646059.

It is an arithmetic number, because the mean of its divisors is an integer number (213276609).

Almost surely, 2^2231201142 is an apocalyptic number.

2231201142 is an abundant number, since it is smaller than the sum of its proper divisors (2887437474).

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

2231201142 is a wasteful number, since it uses less digits than its factorization.

2231201142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7291532 (or 7291529 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2231201142 is about 47235.5918984827. The cubic root of 2231201142 is about 1306.7110826594.

Adding to 2231201142 its reverse (2411021322), we get a palindrome (4642222464).

The spelling of 2231201142 in words is "two billion, two hundred thirty-one million, two hundred one thousand, one hundred forty-two".