101271221 has 8 divisors (see below), whose sum is σ = 103086144. Its totient is φ = 99468000.

The previous prime is 101271217. The next prime is 101271223. The reversal of 101271221 is 122172101.

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

It is a cyclic number.

It is not a de Polignac number, because 101271221 - 2² = 101271217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101271221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101271223) 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, 15560 + ... + 21086.

It is an arithmetic number, because the mean of its divisors is an integer number (12885768).

Almost surely, 2^101271221 is an apocalyptic number.

It is an amenable number.

101271221 is a deficient number, since it is larger than the sum of its proper divisors (1814923).

101271221 is an equidigital number, since it uses as much as digits as its factorization.

101271221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 101271221 is about 10063.3603234705. The cubic root of 101271221 is about 466.1174358807.

The spelling of 101271221 in words is "one hundred one million, two hundred seventy-one thousand, two hundred twenty-one".