2221500535 has 8 divisors (see below), whose sum is σ = 2737849536. Its totient is φ = 1729167840.

The previous prime is 2221500511. The next prime is 2221500571. The reversal of 2221500535 is 5350051222.

It is a happy number.

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

It is not a de Polignac number, because 2221500535 - 2⁵ = 2221500503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6003871 + ... + 6004240.

It is an arithmetic number, because the mean of its divisors is an integer number (342231192).

Almost surely, 2^2221500535 is an apocalyptic number.

2221500535 is a deficient number, since it is larger than the sum of its proper divisors (516349001).

2221500535 is a wasteful number, since it uses less digits than its factorization.

2221500535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12008153.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2221500535 is about 47132.7968085918. The cubic root of 2221500535 is about 1304.8145995968.

Adding to 2221500535 its reverse (5350051222), we get a palindrome (7571551757).

The spelling of 2221500535 in words is "two billion, two hundred twenty-one million, five hundred thousand, five hundred thirty-five".