220210120112021 has 8 divisors (see below), whose sum is σ = 237174923402424. Its totient is φ = 203248968719040.

The previous prime is 220210120111991. The next prime is 220210120112069. The reversal of 220210120112021 is 120211021012022.

It can be written as a sum of positive squares in 4 ways, for example, as 22398553409521 + 197811566702500 = 4732711^2 + 14064550^2 .

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 220210120112021 - 2¹⁸ = 220210119849877 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 (220210120112221) 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, 912849110 + ... + 913090311.

It is an arithmetic number, because the mean of its divisors is an integer number (29646865425303).

Almost surely, 2^{220210120112021} is an apocalyptic number.

It is an amenable number.

220210120112021 is a deficient number, since it is larger than the sum of its proper divisors (16964803290403).

220210120112021 is a wasteful number, since it uses less digits than its factorization.

220210120112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825948711.

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

Adding to 220210120112021 its reverse (120211021012022), we get a palindrome (340421141124043).

Subtracting from 220210120112021 its reverse (120211021012022), we obtain a palindrome (99999099099999).

The spelling of 220210120112021 in words is "two hundred twenty trillion, two hundred ten billion, one hundred twenty million, one hundred twelve thousand, twenty-one".