103197221 has 4 divisors (see below), whose sum is σ = 103716000. Its totient is φ = 102678444.

The previous prime is 103197217. The next prime is 103197257. The reversal of 103197221 is 122791301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122791301 = 53 ⋅2316817.

It is a cyclic number.

It is not a de Polignac number, because 103197221 - 2² = 103197217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103497221) 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, 259091 + ... + 259488.

It is an arithmetic number, because the mean of its divisors is an integer number (25929000).

Almost surely, 2^103197221 is an apocalyptic number.

It is an amenable number.

103197221 is a deficient number, since it is larger than the sum of its proper divisors (518779).

103197221 is an equidigital number, since it uses as much as digits as its factorization.

103197221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518778.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 103197221 is about 10158.6032996667. The cubic root of 103197221 is about 469.0538094267.

The spelling of 103197221 in words is "one hundred three million, one hundred ninety-seven thousand, two hundred twenty-one".