1228210107 has 4 divisors (see below), whose sum is σ = 1637613480. Its totient is φ = 818806736.

The previous prime is 1228210099. The next prime is 1228210121. The reversal of 1228210107 is 7010128221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7010128221 = 3 ⋅2336709407.

It is a cyclic number.

It is not a de Polignac number, because 1228210107 - 2³ = 1228210099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228210177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204701682 + ... + 204701687.

It is an arithmetic number, because the mean of its divisors is an integer number (409403370).

Almost surely, 2^1228210107 is an apocalyptic number.

1228210107 is a deficient number, since it is larger than the sum of its proper divisors (409403373).

1228210107 is an equidigital number, since it uses as much as digits as its factorization.

1228210107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409403372.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 1228210107 is about 35045.8286676175. The cubic root of 1228210107 is about 1070.9212978144.

Adding to 1228210107 its reverse (7010128221), we get a palindrome (8238338328).

The spelling of 1228210107 in words is "one billion, two hundred twenty-eight million, two hundred ten thousand, one hundred seven".