200110020021 has 32 divisors (see below), whose sum is σ = 299878225920. Its totient is φ = 131873564592.

The previous prime is 200110020017. The next prime is 200110020037. The reversal of 200110020021 is 120020011002.

It is not a de Polignac number, because 200110020021 - 2² = 200110020017 is a prime.

It is a super-2 number, since 2×200110020021² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200110019985 and 200110020012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200110020041) 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 31 ways as a sum of consecutive naturals, for example, 1262806 + ... + 1412408.

It is an arithmetic number, because the mean of its divisors is an integer number (9371194560).

Almost surely, 2^200110020021 is an apocalyptic number.

It is an amenable number.

200110020021 is a deficient number, since it is larger than the sum of its proper divisors (99768205899).

200110020021 is a wasteful number, since it uses less digits than its factorization.

200110020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150182 (or 150176 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 200110020021 its reverse (120020011002), we get a palindrome (320130031023).

The spelling of 200110020021 in words is "two hundred billion, one hundred ten million, twenty thousand, twenty-one".