210022221012221 has 8 divisors (see below), whose sum is σ = 210166564339200. Its totient is φ = 209877879818880.

The previous prime is 210022221012203. The next prime is 210022221012251. The reversal of 210022221012221 is 122210122220012.

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 210022221012221 - 2²⁶ = 210022153903357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210022221012193 and 210022221012202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022221012251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230815085 + ... + 231723213.

It is an arithmetic number, because the mean of its divisors is an integer number (26270820542400).

Almost surely, 2^{210022221012221} is an apocalyptic number.

It is an amenable number.

210022221012221 is a deficient number, since it is larger than the sum of its proper divisors (144343326979).

210022221012221 is a wasteful number, since it uses less digits than its factorization.

210022221012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066819.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 210022221012221 its reverse (122210122220012), we get a palindrome (332232343232233).

The spelling of 210022221012221 in words is "two hundred ten trillion, twenty-two billion, two hundred twenty-one million, twelve thousand, two hundred twenty-one".