101240645212 has 24 divisors (see below), whose sum is σ = 202497815520. Its totient is φ = 43385306880.

The previous prime is 101240645203. The next prime is 101240645221. The reversal of 101240645212 is 212546042101.

101240645212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (101240645203) and next prime (101240645221).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217512 + ... + 499792.

It is an arithmetic number, because the mean of its divisors is an integer number (8437408980).

Almost surely, 2^101240645212 is an apocalyptic number.

It is an amenable number.

101240645212 is an abundant number, since it is smaller than the sum of its proper divisors (101257170308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101240645212 is a wasteful number, since it uses less digits than its factorization.

101240645212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295101 (or 295099 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 101240645212 its reverse (212546042101), we get a palindrome (313786687313).

The spelling of 101240645212 in words is "one hundred one billion, two hundred forty million, six hundred forty-five thousand, two hundred twelve".