2111021148 has 12 divisors (see below), whose sum is σ = 4925716040. Its totient is φ = 703673712.

The previous prime is 2111021147. The next prime is 2111021219. The reversal of 2111021148 is 8411201112.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111021141) 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 3 ways as a sum of consecutive naturals, for example, 87959203 + ... + 87959226.

Almost surely, 2^2111021148 is an apocalyptic number.

It is an amenable number.

2111021148 is an abundant number, since it is smaller than the sum of its proper divisors (2814694892).

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

2111021148 is a wasteful number, since it uses less digits than its factorization.

2111021148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175918436 (or 175918434 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 2111021148 is about 45945.8501716967. The cubic root of 2111021148 is about 1282.8154878965.

The spelling of 2111021148 in words is "two billion, one hundred eleven million, twenty-one thousand, one hundred forty-eight".