210002220221 has 8 divisors (see below), whose sum is σ = 212055554880. Its totient is φ = 207949164192.

The previous prime is 210002220193. The next prime is 210002220223. The reversal of 210002220221 is 122022200012.

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 210002220221 - 2¹⁸ = 210001958077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210002220196 and 210002220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210002220223) 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, 1651910 + ... + 1774488.

It is an arithmetic number, because the mean of its divisors is an integer number (26506944360).

Almost surely, 2^210002220221 is an apocalyptic number.

It is an amenable number.

210002220221 is a deficient number, since it is larger than the sum of its proper divisors (2053334659).

210002220221 is a wasteful number, since it uses less digits than its factorization.

210002220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139315.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 210002220221 its reverse (122022200012), we get a palindrome (332024420233).

The spelling of 210002220221 in words is "two hundred ten billion, two million, two hundred twenty thousand, two hundred twenty-one".