122143144220042 has 16 divisors (see below), whose sum is σ = 199872672442272. Its totient is φ = 55519035228720.

The previous prime is 122143144220033. The next prime is 122143144220051. The reversal of 122143144220042 is 240022441341221.

It is an interprime number because it is at equal distance from previous prime (122143144220033) and next prime (122143144220051).

It is a junction number, because it is equal to n+sod(n) for n = 122143144219990 and 122143144220008.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26615813 + ... + 30865640.

It is an arithmetic number, because the mean of its divisors is an integer number (12492042027642).

Almost surely, 2^{122143144220042} is an apocalyptic number.

122143144220042 is a deficient number, since it is larger than the sum of its proper divisors (77729528222230).

122143144220042 is a wasteful number, since it uses less digits than its factorization.

122143144220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57578053.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 122143144220042 its reverse (240022441341221), we get a palindrome (362165585561263).

The spelling of 122143144220042 in words is "one hundred twenty-two trillion, one hundred forty-three billion, one hundred forty-four million, two hundred twenty thousand, forty-two".