21220102201210 has 32 divisors (see below), whose sum is σ = 41901349636800. Its totient is φ = 7673292408960.

The previous prime is 21220102201171. The next prime is 21220102201223. The reversal of 21220102201210 is 1210220102212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538835115 + ... + 538874494.

It is an arithmetic number, because the mean of its divisors is an integer number (1309417176150).

Almost surely, 2^{21220102201210} is an apocalyptic number.

21220102201210 is a deficient number, since it is larger than the sum of its proper divisors (20681247435590).

21220102201210 is a wasteful number, since it uses less digits than its factorization.

21220102201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077709806.

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

Adding to 21220102201210 its reverse (1210220102212), we get a palindrome (22430322303422).

The spelling of 21220102201210 in words is "twenty-one trillion, two hundred twenty billion, one hundred two million, two hundred one thousand, two hundred ten".