210022221202221 has 12 divisors (see below), whose sum is σ = 297470919996992. Its totient is φ = 131778648596928.

The previous prime is 210022221202207. The next prime is 210022221202231. The reversal of 210022221202221 is 122202122220012.

It is not a de Polignac number, because 210022221202221 - 2²⁹ = 210021684331309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022221202231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121120080565 + ... + 121120082298.

Almost surely, 2^{210022221202221} is an apocalyptic number.

It is an amenable number.

210022221202221 is a deficient number, since it is larger than the sum of its proper divisors (87448698794771).

210022221202221 is a wasteful number, since it uses less digits than its factorization.

210022221202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242240162900 (or 242240162883 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 210022221202221 its reverse (122202122220012), we get a palindrome (332224343422233).

The spelling of 210022221202221 in words is "two hundred ten trillion, twenty-two billion, two hundred twenty-one million, two hundred two thousand, two hundred twenty-one".