10101212211213 has 12 divisors (see below), whose sum is σ = 14591537791740. Its totient is φ = 6733727044416.

The previous prime is 10101212211163. The next prime is 10101212211239. The reversal of 10101212211213 is 31211221210101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2924910596169 + 7176301615044 = 1710237^2 + 2678862^2 .

It is not a de Polignac number, because 10101212211213 - 2⁹ = 10101212210701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101212210213) 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 11 ways as a sum of consecutive naturals, for example, 34381408 + ... + 34673961.

It is an arithmetic number, because the mean of its divisors is an integer number (1215961482645).

Almost surely, 2^{10101212211213} is an apocalyptic number.

It is an amenable number.

10101212211213 is a deficient number, since it is larger than the sum of its proper divisors (4490325580527).

10101212211213 is a wasteful number, since it uses less digits than its factorization.

10101212211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69071628 (or 69071625 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 10101212211213 its reverse (31211221210101), we get a palindrome (41312433421314).

The spelling of 10101212211213 in words is "ten trillion, one hundred one billion, two hundred twelve million, two hundred eleven thousand, two hundred thirteen".