2121919148 has 12 divisors (see below), whose sum is σ = 3722181792. Its totient is φ = 1058438640.

The previous prime is 2121919139. The next prime is 2121919159. The reversal of 2121919148 is 8419191212.

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, 628340 + ... + 631707.

It is an arithmetic number, because the mean of its divisors is an integer number (310181816).

Almost surely, 2^2121919148 is an apocalyptic number.

It is an amenable number.

2121919148 is a deficient number, since it is larger than the sum of its proper divisors (1600262644).

2121919148 is a wasteful number, since it uses less digits than its factorization.

2121919148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260472 (or 1260470 counting only the distinct ones).

The product of its digits is 10368, while the sum is 38.

The square root of 2121919148 is about 46064.2936340068. The cubic root of 2121919148 is about 1285.0191820379.

The spelling of 2121919148 in words is "two billion, one hundred twenty-one million, nine hundred nineteen thousand, one hundred forty-eight".