10221331505 has 16 divisors (see below), whose sum is σ = 15292174464. Its totient is φ = 6371738880.

The previous prime is 10221331489. The next prime is 10221331517. The reversal of 10221331505 is 50513312201.

It is a happy number.

It is not a de Polignac number, because 10221331505 - 2⁴ = 10221331489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13274072 + ... + 13274841.

It is an arithmetic number, because the mean of its divisors is an integer number (955760904).

Almost surely, 2^10221331505 is an apocalyptic number.

It is an amenable number.

10221331505 is a deficient number, since it is larger than the sum of its proper divisors (5070842959).

10221331505 is a wasteful number, since it uses less digits than its factorization.

10221331505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26548936.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 10221331505 its reverse (50513312201), we get a palindrome (60734643706).

The spelling of 10221331505 in words is "ten billion, two hundred twenty-one million, three hundred thirty-one thousand, five hundred five".