210022012221 has 32 divisors (see below), whose sum is σ = 338927846400. Its totient is φ = 112930081536.

The previous prime is 210022012201. The next prime is 210022012231. The reversal of 210022012221 is 122210220012.

210022012221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 210022012221 - 2⁷ = 210022012093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210022012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022012201) 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 31 ways as a sum of consecutive naturals, for example, 1780330 + ... + 1894628.

It is an arithmetic number, because the mean of its divisors is an integer number (10591495200).

Almost surely, 2^210022012221 is an apocalyptic number.

210022012221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210022012221 is a deficient number, since it is larger than the sum of its proper divisors (128905834179).

210022012221 is a wasteful number, since it uses less digits than its factorization.

210022012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119473.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 210022012221 its reverse (122210220012), we get a palindrome (332232232233).

The spelling of 210022012221 in words is "two hundred ten billion, twenty-two million, twelve thousand, two hundred twenty-one".