142244222331 has 16 divisors (see below), whose sum is σ = 197185479680. Its totient is φ = 91110238560.

The previous prime is 142244222327. The next prime is 142244222333. The reversal of 142244222331 is 133222442241.

It is not a de Polignac number, because 142244222331 - 2² = 142244222327 is a prime.

It is a super-2 number, since 2×142244222331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142244222333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5488900 + ... + 5514753.

It is an arithmetic number, because the mean of its divisors is an integer number (12324092480).

Almost surely, 2^142244222331 is an apocalyptic number.

142244222331 is a deficient number, since it is larger than the sum of its proper divisors (54941257349).

142244222331 is a wasteful number, since it uses less digits than its factorization.

142244222331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11003826.

The product of its digits is 18432, while the sum is 30.

Adding to 142244222331 its reverse (133222442241), we get a palindrome (275466664572).

The spelling of 142244222331 in words is "one hundred forty-two billion, two hundred forty-four million, two hundred twenty-two thousand, three hundred thirty-one".