211102121112 has 16 divisors (see below), whose sum is σ = 527755302840. Its totient is φ = 70367373696.

The previous prime is 211102121101. The next prime is 211102121129. The reversal of 211102121112 is 211121201112.

It is a happy number.

It is a super-2 number, since 2×211102121112² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211102121091 and 211102121100.

It is a congruent number.

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, 4397960833 + ... + 4397960880.

Almost surely, 2^211102121112 is an apocalyptic number.

It is an amenable number.

211102121112 is an abundant number, since it is smaller than the sum of its proper divisors (316653181728).

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

211102121112 is a wasteful number, since it uses less digits than its factorization.

211102121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8795921722 (or 8795921718 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211102121112 its reverse (211121201112), we get a palindrome (422223322224).

The spelling of 211102121112 in words is "two hundred eleven billion, one hundred two million, one hundred twenty-one thousand, one hundred twelve".