202012099 has 4 divisors (see below), whose sum is σ = 202124736. Its totient is φ = 201899464.

The previous prime is 202012093. The next prime is 202012127. The reversal of 202012099 is 990210202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990210202 = 2 ⋅495105101.

It is a cyclic number.

It is not a de Polignac number, because 202012099 - 2⁹ = 202011587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202012093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53584 + ... + 57229.

It is an arithmetic number, because the mean of its divisors is an integer number (50531184).

Almost surely, 2^202012099 is an apocalyptic number.

202012099 is a deficient number, since it is larger than the sum of its proper divisors (112637).

202012099 is a wasteful number, since it uses less digits than its factorization.

202012099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112636.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 202012099 is about 14213.0960385132. The cubic root of 202012099 is about 586.7581452062.

The spelling of 202012099 in words is "two hundred two million, twelve thousand, ninety-nine".