210021120020222 has 128 divisors (see below), whose sum is σ = 375247933562880. Its totient is φ = 86265706475520.

The previous prime is 210021120020141. The next prime is 210021120020227. The reversal of 210021120020222 is 222020021120012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 210021120020222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210021120020227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61177137818 + ... + 61177141250.

It is an arithmetic number, because the mean of its divisors is an integer number (2931624480960).

Almost surely, 2^{210021120020222} is an apocalyptic number.

210021120020222 is a deficient number, since it is larger than the sum of its proper divisors (165226813542658).

210021120020222 is a wasteful number, since it uses less digits than its factorization.

210021120020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 210021120020222 its reverse (222020021120012), we get a palindrome (432041141140234).

The spelling of 210021120020222 in words is "two hundred ten trillion, twenty-one billion, one hundred twenty million, twenty thousand, two hundred twenty-two".