20010100012213 has 8 divisors (see below), whose sum is σ = 20702343766680. Its totient is φ = 19318005611520.

The previous prime is 20010100012187. The next prime is 20010100012283. The reversal of 20010100012213 is 31221000101002.

It can be written as a sum of positive squares in 4 ways, for example, as 9365325919524 + 10644774092689 = 3060282^2 + 3262633^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20010100012213 - 2⁵ = 20010100012181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010100012193 and 20010100012202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010100012283) 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, 37065820 + ... + 37601797.

It is an arithmetic number, because the mean of its divisors is an integer number (2587792970835).

Almost surely, 2^{20010100012213} is an apocalyptic number.

It is an amenable number.

20010100012213 is a deficient number, since it is larger than the sum of its proper divisors (692243754467).

20010100012213 is an equidigital number, since it uses as much as digits as its factorization.

20010100012213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74676887.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20010100012213 its reverse (31221000101002), we get a palindrome (51231100113215).

The spelling of 20010100012213 in words is "twenty trillion, ten billion, one hundred million, twelve thousand, two hundred thirteen".