2121020196 has 24 divisors (see below), whose sum is σ = 4964008224. Its totient is φ = 704869440.

The previous prime is 2121020191. The next prime is 2121020201. The reversal of 2121020196 is 6910201212.

It is an interprime number because it is at equal distance from previous prime (2121020191) and next prime (2121020201).

It is not an unprimeable number, because it can be changed into a prime (2121020191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263025 + ... + 270968.

It is an arithmetic number, because the mean of its divisors is an integer number (206833676).

Almost surely, 2^2121020196 is an apocalyptic number.

It is an amenable number.

2121020196 is an abundant number, since it is smaller than the sum of its proper divisors (2842988028).

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

2121020196 is a wasteful number, since it uses less digits than its factorization.

2121020196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534331 (or 534329 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 2121020196 is about 46054.5350209944. The cubic root of 2121020196 is about 1284.8376900879.

The spelling of 2121020196 in words is "two billion, one hundred twenty-one million, twenty thousand, one hundred ninety-six".