101220101213 has 16 divisors (see below), whose sum is σ = 127104391680. Its totient is φ = 78305367600.

The previous prime is 101220101201. The next prime is 101220101233. The reversal of 101220101213 is 312101022101.

It is a cyclic number.

It is not a de Polignac number, because 101220101213 - 2²⁰ = 101219052637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220101233) 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 in 15 ways as a sum of consecutive naturals, for example, 4717883 + ... + 4739288.

It is an arithmetic number, because the mean of its divisors is an integer number (7944024480).

Almost surely, 2^101220101213 is an apocalyptic number.

It is an amenable number.

101220101213 is a deficient number, since it is larger than the sum of its proper divisors (25884290467).

101220101213 is a wasteful number, since it uses less digits than its factorization.

101220101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9457328.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 101220101213 its reverse (312101022101), we get a palindrome (413321123314).

The spelling of 101220101213 in words is "one hundred one billion, two hundred twenty million, one hundred one thousand, two hundred thirteen".