211422202 has 4 divisors (see below), whose sum is σ = 317133306. Its totient is φ = 105711100.

The previous prime is 211422191. The next prime is 211422203. The reversal of 211422202 is 202224112.

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., 113827561 + 97594641 = 10669^2 + 9879^2 .

It is not an unprimeable number, because it can be changed into a prime (211422203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52855549 + ... + 52855552.

Almost surely, 2^211422202 is an apocalyptic number.

211422202 is a deficient number, since it is larger than the sum of its proper divisors (105711104).

211422202 is a wasteful number, since it uses less digits than its factorization.

211422202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105711103.

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

The square root of 211422202 is about 14540.3645758970. The cubic root of 211422202 is about 595.7309961961.

Adding to 211422202 its reverse (202224112), we get a palindrome (413646314).

The spelling of 211422202 in words is "two hundred eleven million, four hundred twenty-two thousand, two hundred two".