2001920109202 has 8 divisors (see below), whose sum is σ = 3233870945676. Its totient is φ = 923963127312.

The previous prime is 2001920109173. The next prime is 2001920109221. The reversal of 2001920109202 is 2029010291002.

It can be written as a sum of positive squares in 2 ways, for example, as 1862321479561 + 139598629641 = 1364669^2 + 373629^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38498463613 + ... + 38498463664.

Almost surely, 2^{2001920109202} is an apocalyptic number.

2001920109202 is a deficient number, since it is larger than the sum of its proper divisors (1231950836474).

2001920109202 is a wasteful number, since it uses less digits than its factorization.

2001920109202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76996927292.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 2001920109202 in words is "two trillion, one billion, nine hundred twenty million, one hundred nine thousand, two hundred two".