103221212 has 24 divisors (see below), whose sum is σ = 195338304. Its totient is φ = 47539712.

The previous prime is 103221203. The next prime is 103221233. The reversal of 103221212 is 212122301.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12953 + ... + 19344.

It is an arithmetic number, because the mean of its divisors is an integer number (8139096).

Almost surely, 2^103221212 is an apocalyptic number.

It is an amenable number.

103221212 is a deficient number, since it is larger than the sum of its proper divisors (92117092).

103221212 is a wasteful number, since it uses less digits than its factorization.

103221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32365 (or 32363 counting only the distinct ones).

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

The square root of 103221212 is about 10159.7840528232. The cubic root of 103221212 is about 469.0901547143.

Adding to 103221212 its reverse (212122301), we get a palindrome (315343513).

The spelling of 103221212 in words is "one hundred three million, two hundred twenty-one thousand, two hundred twelve".