122143144220142 has 64 divisors (see below), whose sum is σ = 247923544538880. Its totient is φ = 40111713734400.

The previous prime is 122143144220107. The next prime is 122143144220161. The reversal of 122143144220142 is 241022441341221.

It is a happy number.

It is a super-2 number, since 2×122143144220142² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181989193 + ... + 182659115.

It is an arithmetic number, because the mean of its divisors is an integer number (3873805383420).

Almost surely, 2^{122143144220142} is an apocalyptic number.

122143144220142 is an abundant number, since it is smaller than the sum of its proper divisors (125780400318738).

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

122143144220142 is a wasteful number, since it uses less digits than its factorization.

122143144220142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671249.

The product of its (nonzero) digits is 24576, while the sum is 33.

Adding to 122143144220142 its reverse (241022441341221), we get a palindrome (363165585561363).

The spelling of 122143144220142 in words is "one hundred twenty-two trillion, one hundred forty-three billion, one hundred forty-four million, two hundred twenty thousand, one hundred forty-two".