122210406 has 24 divisors (see below), whose sum is σ = 265434624. Its totient is φ = 40637520.

The previous prime is 122210369. The next prime is 122210423. The reversal of 122210406 is 604012221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 486 + ... + 15641.

It is an arithmetic number, because the mean of its divisors is an integer number (11059776).

Almost surely, 2^122210406 is an apocalyptic number.

122210406 is an abundant number, since it is smaller than the sum of its proper divisors (143224218).

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

122210406 is a wasteful number, since it uses less digits than its factorization.

122210406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16556 (or 16553 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 122210406 is about 11054.8815461768. The cubic root of 122210406 is about 496.2525243565.

Adding to 122210406 its reverse (604012221), we get a palindrome (726222627).

It can be divided in two parts, 1222 and 10406, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 122210406 in words is "one hundred twenty-two million, two hundred ten thousand, four hundred six".