5099221 has 8 divisors (see below), whose sum is σ = 5318144.
Its totient is φ = 4883760.
The previous prime is 5099219. The next prime is 5099233. The reversal of 5099221 is 1229905.
It can be divided in two parts, 509 and 9221, that added together give a triangular number (9730 = T139).
5099221 = T558 + T559 + ... +
5099221 is a nontrivial binomial coefficient, being equal to C(3194, 2).
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 5099221 - 21 = 5099219 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 5099221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (5099251) 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, 2395 + ... + 3991.
It is an arithmetic number, because the mean of its divisors is an integer number (664768).
Almost surely, 25099221 is an apocalyptic number.
5099221 is the 3193-rd triangular number and also the 1597-th hexagonal number.
5099221 is the 1065-th centered nonagonal number.
It is an amenable number.
5099221 is a deficient number, since it is larger than the sum of its proper divisors (218923).
5099221 is a wasteful number, since it uses less digits than its factorization.
5099221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1731.
The product of its (nonzero) digits is 1620, while the sum is 28.
The square root of 5099221 is about 2258.1454780417.
The cubic root of 5099221 is about 172.1212976186.
The spelling of 5099221 in words is "five million, ninety-nine thousand, two hundred twenty-one".