142514216221 has 4 divisors (see below), whose sum is σ = 153476848252. Its totient is φ = 131551584192.

The previous prime is 142514216203. The next prime is 142514216227. The reversal of 142514216221 is 122612415241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122612415241 = 53 ⋅2313441797.

It can be written as a sum of positive squares in 2 ways, for example, as 29944572025 + 112569644196 = 173045^2 + 335514^2 .

It is a cyclic number.

It is not a de Polignac number, because 142514216221 - 2⁵ = 142514216189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142514216227) 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 3 ways as a sum of consecutive naturals, for example, 5481315996 + ... + 5481316021.

It is an arithmetic number, because the mean of its divisors is an integer number (38369212063).

Almost surely, 2^142514216221 is an apocalyptic number.

It is an amenable number.

142514216221 is a deficient number, since it is larger than the sum of its proper divisors (10962632031).

142514216221 is a wasteful number, since it uses less digits than its factorization.

142514216221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10962632030.

The product of its digits is 7680, while the sum is 31.

The spelling of 142514216221 in words is "one hundred forty-two billion, five hundred fourteen million, two hundred sixteen thousand, two hundred twenty-one".