22100122121213 has 2 divisors, whose sum is σ = 22100122121214. Its totient is φ = 22100122121212.

The previous prime is 22100122121201. The next prime is 22100122121263. The reversal of 22100122121213 is 31212122100122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16021343112889 + 6078779008324 = 4002667^2 + 2465518^2 .

It is a cyclic number.

It is not a de Polignac number, because 22100122121213 - 2¹⁰ = 22100122120189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22100122121263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050061060606 + 11050061060607.

It is an arithmetic number, because the mean of its divisors is an integer number (11050061060607).

Almost surely, 2^{22100122121213} is an apocalyptic number.

It is an amenable number.

22100122121213 is a deficient number, since it is larger than the sum of its proper divisors (1).

22100122121213 is an equidigital number, since it uses as much as digits as its factorization.

22100122121213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 22100122121213 its reverse (31212122100122), we get a palindrome (53312244221335).

The spelling of 22100122121213 in words is "twenty-two trillion, one hundred billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred thirteen".