2021210050365 has 512 divisors, whose sum is σ = 4467778560000. Its totient is φ = 854283386880.

The previous prime is 2021210050319. The next prime is 2021210050367. The reversal of 2021210050365 is 5630500121202.

It is a happy number.

2021210050365 is a `hidden beast` number, since 20 + 21 + 210 + 0 + 50 + 365 = 666.

It is not a de Polignac number, because 2021210050365 - 2²³ = 2021201661757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021210050367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 4823890126 + ... + 4823890544.

It is an arithmetic number, because the mean of its divisors is an integer number (8726130000).

Almost surely, 2^{2021210050365} is an apocalyptic number.

It is an amenable number.

2021210050365 is an abundant number, since it is smaller than the sum of its proper divisors (2446568509635).

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

2021210050365 is a wasteful number, since it uses less digits than its factorization.

2021210050365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 2021210050365 its reverse (5630500121202), we get a palindrome (7651710171567).

The spelling of 2021210050365 in words is "two trillion, twenty-one billion, two hundred ten million, fifty thousand, three hundred sixty-five".