210110222022021 has 6 divisors (see below), whose sum is σ = 303492542920710. Its totient is φ = 140073481348008.

The previous prime is 210110222022007. The next prime is 210110222022023. The reversal of 210110222022021 is 120220222011012.

It is a happy number.

210110222022021 is a `hidden beast` number, since 2 + 101 + 102 + 220 + 220 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 120091133132100 + 90019088889921 = 10958610^2 + 9487839^2 .

It is not a de Polignac number, because 210110222022021 - 2⁷ = 210110222021893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210110222021985 and 210110222022003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210110222022023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11672790112326 + ... + 11672790112343.

It is an arithmetic number, because the mean of its divisors is an integer number (50582090486785).

Almost surely, 2^{210110222022021} is an apocalyptic number.

It is an amenable number.

210110222022021 is a deficient number, since it is larger than the sum of its proper divisors (93382320898689).

210110222022021 is a wasteful number, since it uses less digits than its factorization.

210110222022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23345580224675 (or 23345580224672 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210110222022021 its reverse (120220222011012), we get a palindrome (330330444033033).

The spelling of 210110222022021 in words is "two hundred ten trillion, one hundred ten billion, two hundred twenty-two million, twenty-two thousand, twenty-one".