211200021202 has 4 divisors (see below), whose sum is σ = 316800031806. Its totient is φ = 105600010600.

The previous prime is 211200021167. The next prime is 211200021209. The reversal of 211200021202 is 202120002112.

It is a happy number.

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., 165129262321 + 46070758881 = 406361^2 + 214641^2 .

It is not an unprimeable number, because it can be changed into a prime (211200021209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52800005299 + ... + 52800005302.

Almost surely, 2^211200021202 is an apocalyptic number.

211200021202 is a deficient number, since it is larger than the sum of its proper divisors (105600010604).

211200021202 is a wasteful number, since it uses less digits than its factorization.

211200021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105600010603.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 211200021202 its reverse (202120002112), we get a palindrome (413320023314).

The spelling of 211200021202 in words is "two hundred eleven billion, two hundred million, twenty-one thousand, two hundred two".