211000111121211 has 16 divisors (see below), whose sum is σ = 281415411863040. Its totient is φ = 140625781531200.

The previous prime is 211000111121119. The next prime is 211000111121231. The reversal of 211000111121211 is 112121111000112.

It is not a de Polignac number, because 211000111121211 - 2²¹ = 211000109024059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211000111121231) 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, 142010010 + ... + 143488128.

It is an arithmetic number, because the mean of its divisors is an integer number (17588463241440).

Almost surely, 2^{211000111121211} is an apocalyptic number.

211000111121211 is a deficient number, since it is larger than the sum of its proper divisors (70415300741829).

211000111121211 is a wasteful number, since it uses less digits than its factorization.

211000111121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491946.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 211000111121211 its reverse (112121111000112), we get a palindrome (323121222121323).

The spelling of 211000111121211 in words is "two hundred eleven trillion, one hundred eleven million, one hundred twenty-one thousand, two hundred eleven".