122120212 has 6 divisors (see below), whose sum is σ = 213710378. Its totient is φ = 61060104.

The previous prime is 122120209. The next prime is 122120233. The reversal of 122120212 is 212021221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 78216336 + 43903876 = 8844^2 + 6626^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122120192 and 122120201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15265023 + ... + 15265030.

Almost surely, 2^122120212 is an apocalyptic number.

It is an amenable number.

122120212 is a deficient number, since it is larger than the sum of its proper divisors (91590166).

122120212 is a wasteful number, since it uses less digits than its factorization.

122120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30530057 (or 30530055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 122120212 is about 11050.8014189017. The cubic root of 122120212 is about 496.1304125080.

Adding to 122120212 its reverse (212021221), we get a palindrome (334141433).

The spelling of 122120212 in words is "one hundred twenty-two million, one hundred twenty thousand, two hundred twelve".