210010220021 has 8 divisors (see below), whose sum is σ = 240052552320. Its totient is φ = 179978105808.

The previous prime is 210010219957. The next prime is 210010220039. The reversal of 210010220021 is 120022010012.

It is a happy number.

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 210010220021 - 2⁶ = 210010219957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210010219984 and 210010220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210010220221) 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, 2510426 + ... + 2592731.

It is an arithmetic number, because the mean of its divisors is an integer number (30006569040).

Almost surely, 2^210010220021 is an apocalyptic number.

It is an amenable number.

210010220021 is a deficient number, since it is larger than the sum of its proper divisors (30042332299).

210010220021 is an equidigital number, since it uses as much as digits as its factorization.

210010220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5109043.

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

Adding to 210010220021 its reverse (120022010012), we get a palindrome (330032230033).

The spelling of 210010220021 in words is "two hundred ten billion, ten million, two hundred twenty thousand, twenty-one".