122705212 has 36 divisors (see below), whose sum is σ = 250428360. Its totient is φ = 52454304.

The previous prime is 122705197. The next prime is 122705213. The reversal of 122705212 is 212507221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122705213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138523 + ... + 139405.

Almost surely, 2^122705212 is an apocalyptic number.

It is an amenable number.

122705212 is an abundant number, since it is smaller than the sum of its proper divisors (127723148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122705212 is a wasteful number, since it uses less digits than its factorization.

122705212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610 (or 1601 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 122705212 is about 11077.2384645272. The cubic root of 122705212 is about 496.9213655927.

The spelling of 122705212 in words is "one hundred twenty-two million, seven hundred five thousand, two hundred twelve".