142221014 has 32 divisors (see below), whose sum is σ = 246395520. Its totient is φ = 60982272.

The previous prime is 142220999. The next prime is 142221019. The reversal of 142221014 is 410122241.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 142220983 and 142221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142221019) 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, 32882 + ... + 36954.

It is an arithmetic number, because the mean of its divisors is an integer number (7699860).

Almost surely, 2^142221014 is an apocalyptic number.

142221014 is a deficient number, since it is larger than the sum of its proper divisors (104174506).

142221014 is a wasteful number, since it uses less digits than its factorization.

142221014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4184.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 142221014 is about 11925.6452236347. The cubic root of 142221014 is about 521.9808740173.

Adding to 142221014 its reverse (410122241), we get a palindrome (552343255).

The spelling of 142221014 in words is "one hundred forty-two million, two hundred twenty-one thousand, fourteen".