101512203122 has 48 divisors (see below), whose sum is σ = 177847723008. Its totient is φ = 43085387520.

The previous prime is 101512203119. The next prime is 101512203137. The reversal of 101512203122 is 221302215101.

It is a junction number, because it is equal to n+sod(n) for n = 101512203094 and 101512203103.

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 23 ways as a sum of consecutive naturals, for example, 744608 + ... + 870324.

It is an arithmetic number, because the mean of its divisors is an integer number (3705160896).

Almost surely, 2^101512203122 is an apocalyptic number.

101512203122 is a deficient number, since it is larger than the sum of its proper divisors (76335519886).

101512203122 is a wasteful number, since it uses less digits than its factorization.

101512203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125891 (or 125874 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 101512203122 its reverse (221302215101), we get a palindrome (322814418223).

The spelling of 101512203122 in words is "one hundred one billion, five hundred twelve million, two hundred three thousand, one hundred twenty-two".