20212102202013 has 24 divisors (see below), whose sum is σ = 29607203808000. Its totient is φ = 13284615849120.

The previous prime is 20212102201979. The next prime is 20212102202023. The reversal of 20212102202013 is 31020220121202.

20212102202013 is a `hidden beast` number, since 20 + 212 + 10 + 220 + 201 + 3 = 666.

It is not a de Polignac number, because 20212102202013 - 2¹⁶ = 20212102136477 is a prime.

It is a super-2 number, since 2×20212102202013² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212102202023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26460795 + ... + 27213927.

It is an arithmetic number, because the mean of its divisors is an integer number (1233633492000).

Almost surely, 2^{20212102202013} is an apocalyptic number.

It is an amenable number.

20212102202013 is a deficient number, since it is larger than the sum of its proper divisors (9395101605987).

20212102202013 is a wasteful number, since it uses less digits than its factorization.

20212102202013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795209 (or 795206 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20212102202013 its reverse (31020220121202), we get a palindrome (51232322323215).

The spelling of 20212102202013 in words is "twenty trillion, two hundred twelve billion, one hundred two million, two hundred two thousand, thirteen".