110021000011221 has 64 divisors (see below), whose sum is σ = 171688213831680. Its totient is φ = 62061730225920.

The previous prime is 110021000011147. The next prime is 110021000011229. The reversal of 110021000011221 is 122110000120011.

It is not a de Polignac number, because 110021000011221 - 2⁹ = 110021000010709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110021000011197 and 110021000011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110021000011229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 130353250 + ... + 131194556.

It is an arithmetic number, because the mean of its divisors is an integer number (2682628341120).

Almost surely, 2^{110021000011221} is an apocalyptic number.

It is an amenable number.

110021000011221 is a deficient number, since it is larger than the sum of its proper divisors (61667213820459).

110021000011221 is a wasteful number, since it uses less digits than its factorization.

110021000011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847066.

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

Adding to 110021000011221 its reverse (122110000120011), we get a palindrome (232131000131232).

The spelling of 110021000011221 in words is "one hundred ten trillion, twenty-one billion, eleven thousand, two hundred twenty-one".