103209122 has 4 divisors (see below), whose sum is σ = 154813686. Its totient is φ = 51604560.

The previous prime is 103209107. The next prime is 103209163. The reversal of 103209122 is 221902301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 62236321 + 40972801 = 7889^2 + 6401^2 .

It is a junction number, because it is equal to n+sod(n) for n = 103209094 and 103209103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25802279 + ... + 25802282.

Almost surely, 2^103209122 is an apocalyptic number.

103209122 is a deficient number, since it is larger than the sum of its proper divisors (51604564).

103209122 is an equidigital number, since it uses as much as digits as its factorization.

103209122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51604563.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 103209122 is about 10159.1890424384. The cubic root of 103209122 is about 469.0718396113.

The spelling of 103209122 in words is "one hundred three million, two hundred nine thousand, one hundred twenty-two".