2122850 has 12 divisors (see below), whose sum is σ = 3948594. Its totient is φ = 849120.

The previous prime is 2122843. The next prime is 2122853. The reversal of 2122850 is 582212.

It is a Cunningham number, because it is equal to 1457²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1957201 + 165649 = 1399^2 + 407^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2122853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21179 + ... + 21278.

2^2122850 is an apocalyptic number.

2122850 is a deficient number, since it is larger than the sum of its proper divisors (1825744).

2122850 is a wasteful number, since it uses less digits than its factorization.

2122850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42469 (or 42464 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2122850 is about 1457.0003431709. Note that the first 3 decimals coincide. The cubic root of 2122850 is about 128.5207060357.

Subtracting from 2122850 its sum of digits (20), we obtain a triangular number (2122830 = T₂₀₆₀).

The spelling of 2122850 in words is "two million, one hundred twenty-two thousand, eight hundred fifty".