22121210200210 has 192 divisors, whose sum is σ = 44844919741440. Its totient is φ = 7848714931200.

The previous prime is 22121210200139. The next prime is 22121210200253. The reversal of 22121210200210 is 1200201212122.

It is a happy number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 5326559494 + ... + 5326563646.

It is an arithmetic number, because the mean of its divisors is an integer number (233567290320).

Almost surely, 2^{22121210200210} is an apocalyptic number.

22121210200210 is an abundant number, since it is smaller than the sum of its proper divisors (22723709541230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22121210200210 is a wasteful number, since it uses less digits than its factorization.

22121210200210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4905 (or 4894 counting only the distinct ones).

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

Adding to 22121210200210 its reverse (1200201212122), we get a palindrome (23321411412332).

The spelling of 22121210200210 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred ten million, two hundred thousand, two hundred ten".