110001010021221 has 32 divisors (see below), whose sum is σ = 160934256000000. Its totient is φ = 66279154106880.

The previous prime is 110001010021187. The next prime is 110001010021223. The reversal of 110001010021221 is 122120010100011.

It is not a de Polignac number, because 110001010021221 - 2¹⁸ = 110001009759077 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 110001010021197 and 110001010021206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001010021223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1496590 + ... + 14907776.

It is an arithmetic number, because the mean of its divisors is an integer number (5029195500000).

Almost surely, 2^{110001010021221} is an apocalyptic number.

110001010021221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110001010021221 is a deficient number, since it is larger than the sum of its proper divisors (50933245978779).

110001010021221 is a wasteful number, since it uses less digits than its factorization.

110001010021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13412649.

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

Adding to 110001010021221 its reverse (122120010100011), we get a palindrome (232121020121232).

The spelling of 110001010021221 in words is "one hundred ten trillion, one billion, ten million, twenty-one thousand, two hundred twenty-one".