2126219916 has 12 divisors (see below), whose sum is σ = 4961179832. Its totient is φ = 708739968.

The previous prime is 2126219899. The next prime is 2126219923. The reversal of 2126219916 is 6199126212.

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

It is a super-2 number, since 2×2126219916² = 9041622262390094112, which contains 22 as substring.

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, 88592485 + ... + 88592508.

Almost surely, 2^2126219916 is an apocalyptic number.

It is an amenable number.

2126219916 is an abundant number, since it is smaller than the sum of its proper divisors (2834959916).

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

2126219916 is a wasteful number, since it uses less digits than its factorization.

2126219916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177185000 (or 177184998 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 2126219916 is about 46110.9522347999. The cubic root of 2126219916 is about 1285.8867676819.

The spelling of 2126219916 in words is "two billion, one hundred twenty-six million, two hundred nineteen thousand, nine hundred sixteen".