211211221101102 has 12 divisors (see below), whose sum is σ = 457624312385760. Its totient is φ = 70403740367028.

The previous prime is 211211221101047. The next prime is 211211221101121. The reversal of 211211221101102 is 201101122112112.

It is a happy number.

211211221101102 is a `hidden beast` number, since 211 + 211 + 22 + 110 + 110 + 2 = 666.

It is a super-2 number, since 2×211211221101102² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11733956727839 = 211211221101102 / (2 + 1 + 1 + 2 + 1 + 1 + 2 + 2 + 1 + 1 + 0 + 1 + 1 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5866978363902 + ... + 5866978363937.

It is an arithmetic number, because the mean of its divisors is an integer number (38135359365480).

Almost surely, 2^{211211221101102} is an apocalyptic number.

211211221101102 is an abundant number, since it is smaller than the sum of its proper divisors (246413091284658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211211221101102 is a wasteful number, since it uses less digits than its factorization.

211211221101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11733956727847 (or 11733956727844 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 211211221101102 its reverse (201101122112112), we get a palindrome (412312343213214).

The spelling of 211211221101102 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred twenty-one million, one hundred one thousand, one hundred two".