211012221202 has 4 divisors (see below), whose sum is σ = 316518331806. Its totient is φ = 105506110600.

The previous prime is 211012221191. The next prime is 211012221271. The reversal of 211012221202 is 202122210112.

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., 199960114561 + 11052106641 = 447169^2 + 105129^2 .

It is an unprimeable number.

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, 52753055299 + ... + 52753055302.

Almost surely, 2^211012221202 is an apocalyptic number.

211012221202 is a deficient number, since it is larger than the sum of its proper divisors (105506110604).

211012221202 is a wasteful number, since it uses less digits than its factorization.

211012221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105506110603.

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

Adding to 211012221202 its reverse (202122210112), we get a palindrome (413134431314).

The spelling of 211012221202 in words is "two hundred eleven billion, twelve million, two hundred twenty-one thousand, two hundred two".