142321011561222 has 64 divisors (see below), whose sum is σ = 317121466798080. Its totient is φ = 42279224206464.

The previous prime is 142321011561221. The next prime is 142321011561293. The reversal of 142321011561222 is 222165110123241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142321011561221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51695403 + ... + 54378825.

It is an arithmetic number, because the mean of its divisors is an integer number (4955022918720).

Almost surely, 2^{142321011561222} is an apocalyptic number.

142321011561222 is an abundant number, since it is smaller than the sum of its proper divisors (174800455236858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142321011561222 is a wasteful number, since it uses less digits than its factorization.

142321011561222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706917.

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 142321011561222 its reverse (222165110123241), we get a palindrome (364486121684463).

The spelling of 142321011561222 in words is "one hundred forty-two trillion, three hundred twenty-one billion, eleven million, five hundred sixty-one thousand, two hundred twenty-two".