110001021001221 has 16 divisors (see below), whose sum is σ = 168900150025728. Its totient is φ = 62377896313200.

The previous prime is 110001021001219. The next prime is 110001021001307. The reversal of 110001021001221 is 122100120100011.

It is not a de Polignac number, because 110001021001221 - 2¹ = 110001021001219 is a prime.

It is a super-2 number, since 2×110001021001221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110001021001197 and 110001021001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001021009221) 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, 19992912735 + ... + 19992918236.

It is an arithmetic number, because the mean of its divisors is an integer number (10556259376608).

Almost surely, 2^{110001021001221} is an apocalyptic number.

It is an amenable number.

110001021001221 is a deficient number, since it is larger than the sum of its proper divisors (58899129024507).

110001021001221 is a wasteful number, since it uses less digits than its factorization.

110001021001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39985831112.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 110001021001221 its reverse (122100120100011), we get a palindrome (232101141101232).

The spelling of 110001021001221 in words is "one hundred ten trillion, one billion, twenty-one million, one thousand, two hundred twenty-one".