20012202021213 has 24 divisors (see below), whose sum is σ = 30738257337528. Its totient is φ = 12502784443392.

The previous prime is 20012202021199. The next prime is 20012202021239. The reversal of 20012202021213 is 31212020221002.

20012202021213 is a `hidden beast` number, since 200 + 1 + 220 + 20 + 212 + 13 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4048956888804 + 15963245132409 = 2012202^2 + 3995403^2 .

It is not a de Polignac number, because 20012202021213 - 2²¹ = 20012199924061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012202001213) 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, 280648270 + ... + 280719567.

It is an arithmetic number, because the mean of its divisors is an integer number (1280760722397).

Almost surely, 2^{20012202021213} is an apocalyptic number.

It is an amenable number.

20012202021213 is a deficient number, since it is larger than the sum of its proper divisors (10726055316315).

20012202021213 is a wasteful number, since it uses less digits than its factorization.

20012202021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561368093 (or 561368090 counting only the distinct ones).

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

Adding to 20012202021213 its reverse (31212020221002), we get a palindrome (51224222242215).

The spelling of 20012202021213 in words is "twenty trillion, twelve billion, two hundred two million, twenty-one thousand, two hundred thirteen".