122111001342 has 24 divisors (see below), whose sum is σ = 288626003640. Its totient is φ = 37003333680.

The previous prime is 122111001323. The next prime is 122111001359. The reversal of 122111001342 is 243100111221.

122111001342 is a `hidden beast` number, since 1 + 221 + 1 + 100 + 1 + 342 = 666.

It is a super-2 number, since 2×122111001342² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 308360917 + ... + 308361312.

It is an arithmetic number, because the mean of its divisors is an integer number (12026083485).

Almost surely, 2^122111001342 is an apocalyptic number.

122111001342 is an abundant number, since it is smaller than the sum of its proper divisors (166515002298).

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

122111001342 is a wasteful number, since it uses less digits than its factorization.

122111001342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616722248 (or 616722245 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 122111001342 its reverse (243100111221), we get a palindrome (365211112563).

The spelling of 122111001342 in words is "one hundred twenty-two billion, one hundred eleven million, one thousand, three hundred forty-two".