122212142 has 16 divisors (see below), whose sum is σ = 207810960. Its totient is φ = 53436672.

The previous prime is 122212141. The next prime is 122212157. The reversal of 122212142 is 241212221.

It is a self number, because there is not a number n which added to its sum of digits gives 122212142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123203 + ... + 124190.

It is an arithmetic number, because the mean of its divisors is an integer number (12988185).

Almost surely, 2^122212142 is an apocalyptic number.

122212142 is a deficient number, since it is larger than the sum of its proper divisors (85598818).

122212142 is a wasteful number, since it uses less digits than its factorization.

122212142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247427.

The product of its digits is 128, while the sum is 17.

The square root of 122212142 is about 11054.9600632476. The cubic root of 122212142 is about 496.2548741027.

Adding to 122212142 its reverse (241212221), we get a palindrome (363424363).

The spelling of 122212142 in words is "one hundred twenty-two million, two hundred twelve thousand, one hundred forty-two".