21202200201202 has 4 divisors (see below), whose sum is σ = 31803300301806. Its totient is φ = 10601100100600.

The previous prime is 21202200201121. The next prime is 21202200201209. The reversal of 21202200201202 is 20210200220212.

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., 21198372180561 + 3828020641 = 4604169^2 + 61871^2 .

It is not an unprimeable number, because it can be changed into a prime (21202200201209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5300550050299 + ... + 5300550050302.

Almost surely, 2^{21202200201202} is an apocalyptic number.

21202200201202 is a deficient number, since it is larger than the sum of its proper divisors (10601100100604).

21202200201202 is a wasteful number, since it uses less digits than its factorization.

21202200201202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10601100100603.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21202200201202 its reverse (20210200220212), we get a palindrome (41412400421414).

The spelling of 21202200201202 in words is "twenty-one trillion, two hundred two billion, two hundred million, two hundred one thousand, two hundred two".