122215142 has 16 divisors (see below), whose sum is σ = 221836320. Its totient is φ = 49296768.

The previous prime is 122215141. The next prime is 122215183. The reversal of 122215142 is 241512221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122215141) 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, 256517 + ... + 256992.

It is an arithmetic number, because the mean of its divisors is an integer number (13864770).

Almost surely, 2^122215142 is an apocalyptic number.

122215142 is a deficient number, since it is larger than the sum of its proper divisors (99621178).

122215142 is a wasteful number, since it uses less digits than its factorization.

122215142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513535.

The product of its digits is 320, while the sum is 20.

The square root of 122215142 is about 11055.0957481154. The cubic root of 122215142 is about 496.2589346715.

Adding to 122215142 its reverse (241512221), we get a palindrome (363727363).

The spelling of 122215142 in words is "one hundred twenty-two million, two hundred fifteen thousand, one hundred forty-two".