210101221202 has 4 divisors (see below), whose sum is σ = 315151831806. Its totient is φ = 105050610600.

The previous prime is 210101221201. The next prime is 210101221207. The reversal of 210101221202 is 202122101012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 167052855841 + 43048365361 = 408721^2 + 207481^2 .

It is not an unprimeable number, because it can be changed into a prime (210101221201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52525305299 + ... + 52525305302.

Almost surely, 2^210101221202 is an apocalyptic number.

210101221202 is a deficient number, since it is larger than the sum of its proper divisors (105050610604).

210101221202 is a wasteful number, since it uses less digits than its factorization.

210101221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105050610603.

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

Adding to 210101221202 its reverse (202122101012), we get a palindrome (412223322214).

The spelling of 210101221202 in words is "two hundred ten billion, one hundred one million, two hundred twenty-one thousand, two hundred two".