210023020221 has 8 divisors (see below), whose sum is σ = 320035078464. Its totient is φ = 120013154400.

The previous prime is 210023020183. The next prime is 210023020231. The reversal of 210023020221 is 122020320012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210023020221 - 2¹¹ = 210023018173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210023020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210023020231) 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, 5000548080 + ... + 5000548121.

It is an arithmetic number, because the mean of its divisors is an integer number (40004384808).

Almost surely, 2^210023020221 is an apocalyptic number.

210023020221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210023020221 is a deficient number, since it is larger than the sum of its proper divisors (110012058243).

210023020221 is a wasteful number, since it uses less digits than its factorization.

210023020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001096211.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 210023020221 its reverse (122020320012), we get a palindrome (332043340233).

The spelling of 210023020221 in words is "two hundred ten billion, twenty-three million, twenty thousand, two hundred twenty-one".