211121102210 has 16 divisors (see below), whose sum is σ = 380056543992. Its totient is φ = 84439872000.

The previous prime is 211121102207. The next prime is 211121102233. The reversal of 211121102210 is 12201121112.

It can be written as a sum of positive squares in 4 ways, for example, as 210806784769 + 314317441 = 459137^2 + 17729^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 967151 + ... + 1165170.

Almost surely, 2^211121102210 is an apocalyptic number.

211121102210 is a deficient number, since it is larger than the sum of its proper divisors (168935441782).

211121102210 is a wasteful number, since it uses less digits than its factorization.

211121102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142229.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211121102210 its reverse (12201121112), we get a palindrome (223322223322).

The spelling of 211121102210 in words is "two hundred eleven billion, one hundred twenty-one million, one hundred two thousand, two hundred ten".