210110220020021 has 8 divisors (see below), whose sum is σ = 212554692187200. Its totient is φ = 207667607479200.

The previous prime is 210110220019961. The next prime is 210110220020033. The reversal of 210110220020021 is 120020022011012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210110220020021 - 2²⁶ = 210110152911157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210110220019978 and 210110220020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210110220020081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464679305 + ... + 465131246.

It is an arithmetic number, because the mean of its divisors is an integer number (26569336523400).

Almost surely, 2^{210110220020021} is an apocalyptic number.

It is an amenable number.

210110220020021 is a deficient number, since it is larger than the sum of its proper divisors (2444472167179).

210110220020021 is an equidigital number, since it uses as much as digits as its factorization.

210110220020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929813179.

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

Adding to 210110220020021 its reverse (120020022011012), we get a palindrome (330130242031033).

The spelling of 210110220020021 in words is "two hundred ten trillion, one hundred ten billion, two hundred twenty million, twenty thousand, twenty-one".