110021101220121 has 128 divisors (see below), whose sum is σ = 187920118579200. Its totient is φ = 56882393213184.

The previous prime is 110021101220099. The next prime is 110021101220123. The reversal of 110021101220121 is 121022101120011.

It is a happy number.

It is not a de Polignac number, because 110021101220121 - 2¹⁴ = 110021101203737 is a prime.

It is a super-2 number, since 2×110021101220121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 110021101220121.

It is not an unprimeable number, because it can be changed into a prime (110021101220123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 140616831 + ... + 141397083.

It is an arithmetic number, because the mean of its divisors is an integer number (1468125926400).

Almost surely, 2^{110021101220121} is an apocalyptic number.

It is an amenable number.

110021101220121 is a deficient number, since it is larger than the sum of its proper divisors (77899017359079).

110021101220121 is a wasteful number, since it uses less digits than its factorization.

110021101220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780500 (or 780486 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 110021101220121 its reverse (121022101120011), we get a palindrome (231043202340132).

The spelling of 110021101220121 in words is "one hundred ten trillion, twenty-one billion, one hundred one million, two hundred twenty thousand, one hundred twenty-one".