211212112202211 has 8 divisors (see below), whose sum is σ = 281616420365584. Its totient is φ = 140807939420160.

The previous prime is 211212112202177. The next prime is 211212112202249. The reversal of 211212112202211 is 112202211212112.

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

It is not a de Polignac number, because 211212112202211 - 2¹⁰ = 211212112201187 is a prime.

It is a super-2 number, since 2×211212112202211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211212112202251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30147310 + ... + 36486771.

It is an arithmetic number, because the mean of its divisors is an integer number (35202052545698).

Almost surely, 2^{211212112202211} is an apocalyptic number.

211212112202211 is a deficient number, since it is larger than the sum of its proper divisors (70404308163373).

211212112202211 is a wasteful number, since it uses less digits than its factorization.

211212112202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67690661.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 211212112202211 its reverse (112202211212112), we get a palindrome (323414323414323).

Subtracting from 211212112202211 its reverse (112202211212112), we obtain a palindrome (99009900990099).

The spelling of 211212112202211 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred twelve million, two hundred two thousand, two hundred eleven".