10221144455 has 16 divisors (see below), whose sum is σ = 12803797440. Its totient is φ = 7818252288.

The previous prime is 10221144293. The next prime is 10221144457. The reversal of 10221144455 is 55444112201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10221144455 - 2¹² = 10221140359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221144457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292709 + ... + 325761.

It is an arithmetic number, because the mean of its divisors is an integer number (800237340).

Almost surely, 2^10221144455 is an apocalyptic number.

10221144455 is a deficient number, since it is larger than the sum of its proper divisors (2582652985).

10221144455 is a wasteful number, since it uses less digits than its factorization.

10221144455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35770.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 10221144455 its reverse (55444112201), we get a palindrome (65665256656).

The spelling of 10221144455 in words is "ten billion, two hundred twenty-one million, one hundred forty-four thousand, four hundred fifty-five".