2121652050 has 48 divisors (see below), whose sum is σ = 6013371072. Its totient is φ = 484948800.

The previous prime is 2121652031. The next prime is 2121652069. The reversal of 2121652050 is 502561212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2121652031) and next prime (2121652069).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121652050.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1009261 + ... + 1011360.

It is an arithmetic number, because the mean of its divisors is an integer number (125278564).

Almost surely, 2^2121652050 is an apocalyptic number.

2121652050 is an abundant number, since it is smaller than the sum of its proper divisors (3891719022).

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

2121652050 is a wasteful number, since it uses less digits than its factorization.

2121652050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020643 (or 2020638 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2121652050 is about 46061.3943557943. The cubic root of 2121652050 is about 1284.9652622241.

The spelling of 2121652050 in words is "two billion, one hundred twenty-one million, six hundred fifty-two thousand, fifty".