211002111112 has 128 divisors (see below), whose sum is σ = 439865395200. Its totient is φ = 94290739200.

The previous prime is 211002111107. The next prime is 211002111161. The reversal of 211002111112 is 211111200112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 211002111092 and 211002111101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143440537 + ... + 143442007.

It is an arithmetic number, because the mean of its divisors is an integer number (3436448400).

Almost surely, 2^211002111112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211002111112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219932697600).

211002111112 is an abundant number, since it is smaller than the sum of its proper divisors (228863284088).

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

211002111112 is a wasteful number, since it uses less digits than its factorization.

211002111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887 (or 1883 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211002111112 its reverse (211111200112), we get a palindrome (422113311224).

The spelling of 211002111112 in words is "two hundred eleven billion, two million, one hundred eleven thousand, one hundred twelve".