142162212121 has 8 divisors (see below), whose sum is σ = 144721304640. Its totient is φ = 139608105168.

The previous prime is 142162212109. The next prime is 142162212161. The reversal of 142162212121 is 121212261241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142162212121 - 2¹⁷ = 142162081049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142162212161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188826 + ... + 1302931.

It is an arithmetic number, because the mean of its divisors is an integer number (18090163080).

Almost surely, 2^142162212121 is an apocalyptic number.

It is an amenable number.

142162212121 is a deficient number, since it is larger than the sum of its proper divisors (2559092519).

142162212121 is an equidigital number, since it uses as much as digits as its factorization.

142162212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492783.

The product of its digits is 768, while the sum is 25.

Adding to 142162212121 its reverse (121212261241), we get a palindrome (263374473362).

The spelling of 142162212121 in words is "one hundred forty-two billion, one hundred sixty-two million, two hundred twelve thousand, one hundred twenty-one".