202121021210 has 16 divisors (see below), whose sum is σ = 364133947392. Its totient is φ = 80778162000.

The previous prime is 202121021203. The next prime is 202121021227. The reversal of 202121021210 is 12120121202.

202121021210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 8768726 + ... + 8791745.

It is an arithmetic number, because the mean of its divisors is an integer number (22758371712).

Almost surely, 2^202121021210 is an apocalyptic number.

202121021210 is a deficient number, since it is larger than the sum of its proper divisors (162012926182).

202121021210 is a wasteful number, since it uses less digits than its factorization.

202121021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17561629.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202121021210 its reverse (12120121202), we get a palindrome (214241142412).

The spelling of 202121021210 in words is "two hundred two billion, one hundred twenty-one million, twenty-one thousand, two hundred ten".