211211202011210 has 8 divisors (see below), whose sum is σ = 380180163620196. Its totient is φ = 84484480804480.

The previous prime is 211211202011209. The next prime is 211211202011311. The reversal of 211211202011210 is 12110202112112.

It can be written as a sum of positive squares in 2 ways, for example, as 206004504062449 + 5206697948761 = 14352857^2 + 2281819^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×211211202011210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10560560100551 + ... + 10560560100570.

Almost surely, 2^{211211202011210} is an apocalyptic number.

211211202011210 is a deficient number, since it is larger than the sum of its proper divisors (168968961608986).

211211202011210 is a wasteful number, since it uses less digits than its factorization.

211211202011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21121120201128.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211211202011210 its reverse (12110202112112), we get a palindrome (223321404123322).

The spelling of 211211202011210 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred two million, eleven thousand, two hundred ten".