211211221101112 has 64 divisors (see below), whose sum is σ = 419727581844480. Its totient is φ = 99296065347072.

The previous prime is 211211221101047. The next prime is 211211221101121. The reversal of 211211221101112 is 211101122112112.

It is a super-2 number, since 2×211211221101112² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211211221101112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1882011033 + ... + 1882123255.

It is an arithmetic number, because the mean of its divisors is an integer number (6558243466320).

Almost surely, 2^{211211221101112} is an apocalyptic number.

It is an amenable number.

211211221101112 is a deficient number, since it is larger than the sum of its proper divisors (208516360743368).

211211221101112 is a wasteful number, since it uses less digits than its factorization.

211211221101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125692 (or 125688 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 211211221101112 its reverse (211101122112112), we get a palindrome (422312343213224).

The spelling of 211211221101112 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred twenty-one million, one hundred one thousand, one hundred twelve".