110220212021 has 2 divisors, whose sum is σ = 110220212022. Its totient is φ = 110220212020.

The previous prime is 110220212009. The next prime is 110220212027. The reversal of 110220212021 is 120212022011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71347752100 + 38872459921 = 267110^2 + 197161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110220212021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110220211987 and 110220212005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110220212027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55110106010 + 55110106011.

It is an arithmetic number, because the mean of its divisors is an integer number (55110106011).

Almost surely, 2^110220212021 is an apocalyptic number.

It is an amenable number.

110220212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

110220212021 is an equidigital number, since it uses as much as digits as its factorization.

110220212021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 110220212021 its reverse (120212022011), we get a palindrome (230432234032).

The spelling of 110220212021 in words is "one hundred ten billion, two hundred twenty million, two hundred twelve thousand, twenty-one".