110021221220121 has 24 divisors (see below), whose sum is σ = 159752892509184. Its totient is φ = 72962863698240.

The previous prime is 110021221220117. The next prime is 110021221220161. The reversal of 110021221220121 is 121022122120011.

110021221220121 is a `hidden beast` number, since 1 + 100 + 2 + 1 + 221 + 220 + 121 = 666.

It is not a de Polignac number, because 110021221220121 - 2² = 110021221220117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110021221220094 and 110021221220103.

It is not an unprimeable number, because it can be changed into a prime (110021221220101) 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, 329893365 + ... + 330226701.

It is an arithmetic number, because the mean of its divisors is an integer number (6656370521216).

Almost surely, 2^{110021221220121} is an apocalyptic number.

It is an amenable number.

110021221220121 is a deficient number, since it is larger than the sum of its proper divisors (49731671289063).

110021221220121 is a wasteful number, since it uses less digits than its factorization.

110021221220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525541 (or 525538 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 110021221220121 its reverse (121022122120011), we get a palindrome (231043343340132).

The spelling of 110021221220121 in words is "one hundred ten trillion, twenty-one billion, two hundred twenty-one million, two hundred twenty thousand, one hundred twenty-one".