21222350535 has 8 divisors (see below), whose sum is σ = 33955760880. Its totient is φ = 11318586944.

The previous prime is 21222350521. The next prime is 21222350549. The reversal of 21222350535 is 53505322212.

It is an interprime number because it is at equal distance from previous prime (21222350521) and next prime (21222350549).

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 21222350535 - 2⁷ = 21222350407 is a prime.

It is a super-4 number, since 4×21222350535⁴ (a number of 42 digits) contains 4444 as substring.

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, 707411670 + ... + 707411699.

It is an arithmetic number, because the mean of its divisors is an integer number (4244470110).

Almost surely, 2^21222350535 is an apocalyptic number.

21222350535 is a deficient number, since it is larger than the sum of its proper divisors (12733410345).

21222350535 is a wasteful number, since it uses less digits than its factorization.

21222350535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414823377.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 21222350535 its reverse (53505322212), we get a palindrome (74727672747).

The spelling of 21222350535 in words is "twenty-one billion, two hundred twenty-two million, three hundred fifty thousand, five hundred thirty-five".