10221434420444 has 36 divisors (see below), whose sum is σ = 19435423073976. Its totient is φ = 4701484052928.

The previous prime is 10221434420443. The next prime is 10221434420563. The reversal of 10221434420444 is 44402443412201.

It is a super-2 number, since 2×10221434420444² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221434420443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25604774 + ... + 26000909.

It is an arithmetic number, because the mean of its divisors is an integer number (539872863166).

Almost surely, 2^{10221434420444} is an apocalyptic number.

It is an amenable number.

10221434420444 is a deficient number, since it is larger than the sum of its proper divisors (9213988653532).

10221434420444 is a wasteful number, since it uses less digits than its factorization.

10221434420444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51606006 (or 51605991 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 10221434420444 its reverse (44402443412201), we get a palindrome (54623877832645).

The spelling of 10221434420444 in words is "ten trillion, two hundred twenty-one billion, four hundred thirty-four million, four hundred twenty thousand, four hundred forty-four".