20101002220213 has 2 divisors, whose sum is σ = 20101002220214. Its totient is φ = 20101002220212.

The previous prime is 20101002220199. The next prime is 20101002220223. The reversal of 20101002220213 is 31202220010102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20098302170769 + 2700049444 = 4483113^2 + 51962^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20101002220213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20101002220223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050501110106 + 10050501110107.

It is an arithmetic number, because the mean of its divisors is an integer number (10050501110107).

Almost surely, 2^{20101002220213} is an apocalyptic number.

It is an amenable number.

20101002220213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101002220213 is an equidigital number, since it uses as much as digits as its factorization.

20101002220213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20101002220213 its reverse (31202220010102), we get a palindrome (51303222230315).

The spelling of 20101002220213 in words is "twenty trillion, one hundred one billion, two million, two hundred twenty thousand, two hundred thirteen".