122122210 has 24 divisors (see below), whose sum is σ = 255709980. Its totient is φ = 41870304.

The previous prime is 122122181. The next prime is 122122241. The reversal of 122122210 is 12221221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114554209 + 7568001 = 10703^2 + 2751^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124125 + ... + 125104.

Almost surely, 2^122122210 is an apocalyptic number.

122122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122122210 is an abundant number, since it is smaller than the sum of its proper divisors (133587770).

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

122122210 is a wasteful number, since it uses less digits than its factorization.

122122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249250 (or 249243 counting only the distinct ones).

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

The square root of 122122210 is about 11050.8918192153. The cubic root of 122122210 is about 496.1331182113.

Adding to 122122210 its reverse (12221221), we get a palindrome (134343431).

The spelling of 122122210 in words is "one hundred twenty-two million, one hundred twenty-two thousand, two hundred ten".