2111001102 has 80 divisors (see below), whose sum is σ = 5414647392. Its totient is φ = 602173440.

The previous prime is 2111001083. The next prime is 2111001103. The reversal of 2111001102 is 2011001112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111001103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 997998 + ... + 1000110.

Almost surely, 2^2111001102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111001102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2707323696).

2111001102 is an abundant number, since it is smaller than the sum of its proper divisors (3303646290).

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

2111001102 is a wasteful number, since it uses less digits than its factorization.

2111001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015 (or 3006 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 2111001102 is about 45945.6320230770. The cubic root of 2111001102 is about 1282.8114273970.

Adding to 2111001102 its reverse (2011001112), we get a palindrome (4122002214).

The spelling of 2111001102 in words is "two billion, one hundred eleven million, one thousand, one hundred two".