122142212 has 24 divisors (see below), whose sum is σ = 228451104. Its totient is φ = 56938112.

The previous prime is 122142187. The next prime is 122142221. The reversal of 122142212 is 212241221.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a nude number because it is divisible by every one of its digits.

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, 1118 + ... + 15669.

It is an arithmetic number, because the mean of its divisors is an integer number (9518796).

Almost surely, 2^122142212 is an apocalyptic number.

It is an amenable number.

122142212 is a deficient number, since it is larger than the sum of its proper divisors (106308892).

122142212 is a wasteful number, since it uses less digits than its factorization.

122142212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16915 (or 16913 counting only the distinct ones).

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

The square root of 122142212 is about 11051.7967769951. The cubic root of 122142212 is about 496.1602034098.

Adding to 122142212 its reverse (212241221), we get a palindrome (334383433).

Subtracting 122142212 from its reverse (212241221), we obtain a palindrome (90099009).

The spelling of 122142212 in words is "one hundred twenty-two million, one hundred forty-two thousand, two hundred twelve".