220000200110021 has 4 divisors (see below), whose sum is σ = 220007105575200. Its totient is φ = 219993294644844.

The previous prime is 220000200109981. The next prime is 220000200110081. The reversal of 220000200110021 is 120011002000022.

It is a happy number.

220000200110021 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 220000200110021 - 2¹⁸ = 220000199847877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220000200109984 and 220000200110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220000200110081) 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, 3452684801 + ... + 3452748518.

It is an arithmetic number, because the mean of its divisors is an integer number (55001776393800).

Almost surely, 2^{220000200110021} is an apocalyptic number.

It is an amenable number.

220000200110021 is a deficient number, since it is larger than the sum of its proper divisors (6905465179).

220000200110021 is an equidigital number, since it uses as much as digits as its factorization.

220000200110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6905465178.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220000200110021 its reverse (120011002000022), we get a palindrome (340011202110043).

The spelling of 220000200110021 in words is "two hundred twenty trillion, two hundred million, one hundred ten thousand, twenty-one".