5501421221 has 8 divisors (see below), whose sum is σ = 6078297024. Its totient is φ = 4952685760.

The previous prime is 5501421209. The next prime is 5501421223. The reversal of 5501421221 is 1221241055.

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 5501421221 - 2¹⁸ = 5501159077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5501421223) 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, 7034675 + ... + 7035456.

It is an arithmetic number, because the mean of its divisors is an integer number (759787128).

Almost surely, 2^5501421221 is an apocalyptic number.

It is an amenable number.

5501421221 is a deficient number, since it is larger than the sum of its proper divisors (576875803).

5501421221 is a wasteful number, since it uses less digits than its factorization.

5501421221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14070171.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 5501421221 is about 74171.5661220659. The cubic root of 5501421221 is about 1765.3261971503.

Adding to 5501421221 its reverse (1221241055), we get a palindrome (6722662276).

The spelling of 5501421221 in words is "five billion, five hundred one million, four hundred twenty-one thousand, two hundred twenty-one".