210022211221 has 16 divisors (see below), whose sum is σ = 214610876928. Its totient is φ = 205490934000.

The previous prime is 210022211219. The next prime is 210022211263. The reversal of 210022211221 is 122112220012.

It is a happy number.

210022211221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 210022211221 - 2¹ = 210022211219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210022211195 and 210022211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022211281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4123110 + ... + 4173736.

It is an arithmetic number, because the mean of its divisors is an integer number (13413179808).

Almost surely, 2^210022211221 is an apocalyptic number.

It is an amenable number.

210022211221 is a deficient number, since it is larger than the sum of its proper divisors (4588665707).

210022211221 is a wasteful number, since it uses less digits than its factorization.

210022211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51192.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210022211221 its reverse (122112220012), we get a palindrome (332134431233).

The spelling of 210022211221 in words is "two hundred ten billion, twenty-two million, two hundred eleven thousand, two hundred twenty-one".