122420143431242 has 16 divisors (see below), whose sum is σ = 185336590855680. Its totient is φ = 60641411296752.

The previous prime is 122420143431203. The next prime is 122420143431277. The reversal of 122420143431242 is 242134341024221.

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, 31004318 + ... + 34729065.

It is an arithmetic number, because the mean of its divisors is an integer number (11583536928480).

Almost surely, 2^{122420143431242} is an apocalyptic number.

122420143431242 is a deficient number, since it is larger than the sum of its proper divisors (62916447424438).

122420143431242 is a wasteful number, since it uses less digits than its factorization.

122420143431242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65742037.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 122420143431242 its reverse (242134341024221), we get a palindrome (364554484455463).

The spelling of 122420143431242 in words is "one hundred twenty-two trillion, four hundred twenty billion, one hundred forty-three million, four hundred thirty-one thousand, two hundred forty-two".