2121002196 has 12 divisors (see below), whose sum is σ = 4949005152. Its totient is φ = 707000728.

The previous prime is 2121002159. The next prime is 2121002197. The reversal of 2121002196 is 6912001212.

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 (2121002197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88375080 + ... + 88375103.

It is an arithmetic number, because the mean of its divisors is an integer number (412417096).

Almost surely, 2^2121002196 is an apocalyptic number.

It is an amenable number.

2121002196 is an abundant number, since it is smaller than the sum of its proper divisors (2828002956).

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

2121002196 is a wasteful number, since it uses less digits than its factorization.

2121002196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176750190 (or 176750188 counting only the distinct ones).

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

The square root of 2121002196 is about 46054.3396000855. The cubic root of 2121002196 is about 1284.8340554936.

The spelling of 2121002196 in words is "two billion, one hundred twenty-one million, two thousand, one hundred ninety-six".