220210110212021 has 4 divisors (see below), whose sum is σ = 220419634580544. Its totient is φ = 220000585843500.

The previous prime is 220210110211979. The next prime is 220210110212023. The reversal of 220210110212021 is 120212011012022.

220210110212021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220210110212021 - 2³⁴ = 220192930342837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220210110212023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104762182685 + ... + 104762184786.

It is an arithmetic number, because the mean of its divisors is an integer number (55104908645136).

Almost surely, 2^{220210110212021} is an apocalyptic number.

It is an amenable number.

220210110212021 is a deficient number, since it is larger than the sum of its proper divisors (209524368523).

220210110212021 is a wasteful number, since it uses less digits than its factorization.

220210110212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209524368522.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220210110212021 its reverse (120212011012022), we get a palindrome (340422121224043).

The spelling of 220210110212021 in words is "two hundred twenty trillion, two hundred ten billion, one hundred ten million, two hundred twelve thousand, twenty-one".