122043140542 has 8 divisors (see below), whose sum is σ = 186065771832. Its totient is φ = 60021216600.

The previous prime is 122043140519. The next prime is 122043140543. The reversal of 122043140542 is 245041340221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 122043140542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122043140543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500176684 + ... + 500176927.

It is an arithmetic number, because the mean of its divisors is an integer number (23258221479).

Almost surely, 2^122043140542 is an apocalyptic number.

122043140542 is a deficient number, since it is larger than the sum of its proper divisors (64022631290).

122043140542 is a wasteful number, since it uses less digits than its factorization.

122043140542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000353674.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 122043140542 its reverse (245041340221), we get a palindrome (367084480763).

The spelling of 122043140542 in words is "one hundred twenty-two billion, forty-three million, one hundred forty thousand, five hundred forty-two".