20000202021205 has 16 divisors (see below), whose sum is σ = 27451840034304. Its totient is φ = 13702928469120.

The previous prime is 20000202021119. The next prime is 20000202021209. The reversal of 20000202021205 is 50212020200002.

It is not a de Polignac number, because 20000202021205 - 2¹⁷ = 20000201890133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000202021209) 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 15 ways as a sum of consecutive naturals, for example, 239452941 + ... + 239536450.

It is an arithmetic number, because the mean of its divisors is an integer number (1715740002144).

Almost surely, 2^{20000202021205} is an apocalyptic number.

It is an amenable number.

20000202021205 is a deficient number, since it is larger than the sum of its proper divisors (7451638013099).

20000202021205 is a wasteful number, since it uses less digits than its factorization.

20000202021205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478990596.

The product of its (nonzero) digits is 160, while the sum is 16.

Adding to 20000202021205 its reverse (50212020200002), we get a palindrome (70212222221207).

The spelling of 20000202021205 in words is "twenty trillion, two hundred two million, twenty-one thousand, two hundred five".