110021111221021 has 192 divisors, whose sum is σ = 160208367008256. Its totient is φ = 74112404889600.

The previous prime is 110021111221003. The next prime is 110021111221039. The reversal of 110021111221021 is 120122111120011.

It is an interprime number because it is at equal distance from previous prime (110021111221003) and next prime (110021111221039).

It is not a de Polignac number, because 110021111221021 - 2¹¹ = 110021111218973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110021111220986 and 110021111221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110021111221001) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1611737031 + ... + 1611805291.

It is an arithmetic number, because the mean of its divisors is an integer number (834418578168).

Almost surely, 2^{110021111221021} is an apocalyptic number.

110021111221021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110021111221021 is a deficient number, since it is larger than the sum of its proper divisors (50187255787235).

110021111221021 is a wasteful number, since it uses less digits than its factorization.

110021111221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68532 (or 68525 counting only the distinct ones).

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

Adding to 110021111221021 its reverse (120122111120011), we get a palindrome (230143222341032).

The spelling of 110021111221021 in words is "one hundred ten trillion, twenty-one billion, one hundred eleven million, two hundred twenty-one thousand, twenty-one".