2021334434386 has 8 divisors (see below), whose sum is σ = 3032245949004. Its totient is φ = 1010585784720.

The previous prime is 2021334434341. The next prime is 2021334434387. The reversal of 2021334434386 is 6834344331202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2015318105161 + 6016329225 = 1419619^2 + 77565^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2021334434387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40685205 + ... + 40734856.

Almost surely, 2^{2021334434386} is an apocalyptic number.

2021334434386 is a deficient number, since it is larger than the sum of its proper divisors (1010911514618).

2021334434386 is a wasteful number, since it uses less digits than its factorization.

2021334434386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81432476.

The product of its (nonzero) digits is 995328, while the sum is 43.

Adding to 2021334434386 its reverse (6834344331202), we get a palindrome (8855678765588).

The spelling of 2021334434386 in words is "two trillion, twenty-one billion, three hundred thirty-four million, four hundred thirty-four thousand, three hundred eighty-six".