211100210120210 has 32 divisors (see below), whose sum is σ = 390314213336880. Its totient is φ = 82144425894912.

The previous prime is 211100210120201. The next prime is 211100210120213. The reversal of 211100210120210 is 12021012001112.

It can be written as a sum of positive squares in 8 ways, for example, as 141412124572489 + 69688085547721 = 11891683^2 + 8347939^2 .

It is not an unprimeable number, because it can be changed into a prime (211100210120213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44597219 + ... + 49103078.

Almost surely, 2^{211100210120210} is an apocalyptic number.

211100210120210 is a deficient number, since it is larger than the sum of its proper divisors (179214003216670).

211100210120210 is a wasteful number, since it uses less digits than its factorization.

211100210120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93706430.

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

Adding to 211100210120210 its reverse (12021012001112), we get a palindrome (223121222121322).

The spelling of 211100210120210 in words is "two hundred eleven trillion, one hundred billion, two hundred ten million, one hundred twenty thousand, two hundred ten".