142221532011 has 64 divisors (see below), whose sum is σ = 214762060800. Its totient is φ = 83105358336.

The previous prime is 142221532001. The next prime is 142221532031. The reversal of 142221532011 is 110235122241.

It is a happy number.

It is not a de Polignac number, because 142221532011 - 2⁵ = 142221531979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142221532001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63575785 + ... + 63578021.

It is an arithmetic number, because the mean of its divisors is an integer number (3355657200).

Almost surely, 2^142221532011 is an apocalyptic number.

142221532011 is a deficient number, since it is larger than the sum of its proper divisors (72540528789).

142221532011 is a wasteful number, since it uses less digits than its factorization.

142221532011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3188.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 142221532011 its reverse (110235122241), we get a palindrome (252456654252).

The spelling of 142221532011 in words is "one hundred forty-two billion, two hundred twenty-one million, five hundred thirty-two thousand, eleven".