10221204441 has 24 divisors (see below), whose sum is σ = 15954309120. Its totient is φ = 5803473312.

The previous prime is 10221204437. The next prime is 10221204467. The reversal of 10221204441 is 14440212201.

It is not a de Polignac number, because 10221204441 - 2² = 10221204437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (10221204431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198361 + ... + 244518.

It is an arithmetic number, because the mean of its divisors is an integer number (664762880).

Almost surely, 2^10221204441 is an apocalyptic number.

It is an amenable number.

10221204441 is a deficient number, since it is larger than the sum of its proper divisors (5733104679).

10221204441 is a wasteful number, since it uses less digits than its factorization.

10221204441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443053 (or 443046 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 10221204441 its reverse (14440212201), we get a palindrome (24661416642).

The spelling of 10221204441 in words is "ten billion, two hundred twenty-one million, two hundred four thousand, four hundred forty-one".