19122212 has 24 divisors (see below), whose sum is σ = 35652960. Its totient is φ = 8942720.

The previous prime is 19122211. The next prime is 19122283. The reversal of 19122212 is 21222191.

It is a happy number.

19122212 is nontrivially palindromic in base 11.

It is not an unprimeable number, because it can be changed into a prime (19122211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11387 + ... + 12957.

It is an arithmetic number, because the mean of its divisors is an integer number (1485540).

Almost surely, 2^19122212 is an apocalyptic number.

It is an amenable number.

19122212 is a deficient number, since it is larger than the sum of its proper divisors (16530748).

19122212 is a wasteful number, since it uses less digits than its factorization.

19122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771 (or 1769 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 19122212 is about 4372.8951508126. The cubic root of 19122212 is about 267.4110666020.

The spelling of 19122212 in words is "nineteen million, one hundred twenty-two thousand, two hundred twelve".