2020121986 has 8 divisors (see below), whose sum is σ = 3030827004. Its totient is φ = 1009846320.

The previous prime is 2020121969. The next prime is 2020122007. The reversal of 2020121986 is 6891210202.

It can be written as a sum of positive squares in 2 ways, for example, as 2005337961 + 14784025 = 44781^2 + 3845^2 .

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, 95305 + ... + 114556.

Almost surely, 2^2020121986 is an apocalyptic number.

2020121986 is a deficient number, since it is larger than the sum of its proper divisors (1010705018).

2020121986 is a wasteful number, since it uses less digits than its factorization.

2020121986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214676.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2020121986 is about 44945.7671644394. The cubic root of 2020121986 is about 1264.1323104468.

The spelling of 2020121986 in words is "two billion, twenty million, one hundred twenty-one thousand, nine hundred eighty-six".