100221297 has 8 divisors (see below), whose sum is σ = 145776480. Its totient is φ = 60740160.

The previous prime is 100221293. The next prime is 100221299. The reversal of 100221297 is 792122001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100221297 - 2² = 100221293 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100221293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518472 + ... + 1518537.

It is an arithmetic number, because the mean of its divisors is an integer number (18222060).

Almost surely, 2^100221297 is an apocalyptic number.

It is an amenable number.

100221297 is a deficient number, since it is larger than the sum of its proper divisors (45555183).

100221297 is a wasteful number, since it uses less digits than its factorization.

100221297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037023.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 100221297 is about 10011.0587352188. The cubic root of 100221297 is about 464.5010209998.

Adding to 100221297 its reverse (792122001), we get a palindrome (892343298).

The spelling of 100221297 in words is "one hundred million, two hundred twenty-one thousand, two hundred ninety-seven".