103351221 has 20 divisors (see below), whose sum is σ = 156572064. Its totient is φ = 67926600.

The previous prime is 103351207. The next prime is 103351229. The reversal of 103351221 is 122153301.

It is not a de Polignac number, because 103351221 - 2⁵ = 103351189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103351194 and 103351203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103351229) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3235 + ... + 14736.

Almost surely, 2^103351221 is an apocalyptic number.

It is an amenable number.

103351221 is a deficient number, since it is larger than the sum of its proper divisors (53220843).

103351221 is an equidigital number, since it uses as much as digits as its factorization.

103351221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18054 (or 18045 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 103351221 is about 10166.1802561237. The cubic root of 103351221 is about 469.2870146244.

The spelling of 103351221 in words is "one hundred three million, three hundred fifty-one thousand, two hundred twenty-one".