20201020212016 has 40 divisors (see below), whose sum is σ = 44731419259904. Its totient is φ = 8657466131520.

The previous prime is 20201020211987. The next prime is 20201020212017. The reversal of 20201020212016 is 61021202010202.

It is a junction number, because it is equal to n+sod(n) for n = 20201020211984 and 20201020212002.

It is not an unprimeable number, because it can be changed into a prime (20201020212017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7652161 + ... + 9947743.

Almost surely, 2^{20201020212016} is an apocalyptic number.

It is an amenable number.

20201020212016 is an abundant number, since it is smaller than the sum of its proper divisors (24530399047888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20201020212016 is a wasteful number, since it uses less digits than its factorization.

20201020212016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2374169 (or 2374163 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20201020212016 its reverse (61021202010202), we get a palindrome (81222222222218).

The spelling of 20201020212016 in words is "twenty trillion, two hundred one billion, twenty million, two hundred twelve thousand, sixteen".