10221221122444 has 12 divisors (see below), whose sum is σ = 17887503418344. Its totient is φ = 5110505860064.

The previous prime is 10221221122421. The next prime is 10221221122471. The reversal of 10221221122444 is 44422112212201.

It is a super-2 number, since 2×10221221122444² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25955434 + ... + 26346289.

It is an arithmetic number, because the mean of its divisors is an integer number (1490625284862).

Almost surely, 2^{10221221122444} is an apocalyptic number.

It is an amenable number.

10221221122444 is a deficient number, since it is larger than the sum of its proper divisors (7666282295900).

10221221122444 is a wasteful number, since it uses less digits than its factorization.

10221221122444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52350584 (or 52350582 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 10221221122444 its reverse (44422112212201), we get a palindrome (54643333334645).

The spelling of 10221221122444 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred twenty-two thousand, four hundred forty-four".