123012212 has 6 divisors (see below), whose sum is σ = 215271378. Its totient is φ = 61506104.

The previous prime is 123012203. The next prime is 123012223. The reversal of 123012212 is 212210321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 72829156 + 50183056 = 8534^2 + 7084^2 .

It is a super-2 number, since 2×123012212² = 30264008602265888, which contains 22 as substring.

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, 15376523 + ... + 15376530.

It is an arithmetic number, because the mean of its divisors is an integer number (35878563).

Almost surely, 2^123012212 is an apocalyptic number.

It is an amenable number.

123012212 is a deficient number, since it is larger than the sum of its proper divisors (92259166).

123012212 is a wasteful number, since it uses less digits than its factorization.

123012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30753057 (or 30753055 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 123012212 is about 11091.0870522235. The cubic root of 123012212 is about 497.3354414798.

Adding to 123012212 its reverse (212210321), we get a palindrome (335222533).

The spelling of 123012212 in words is "one hundred twenty-three million, twelve thousand, two hundred twelve".