101223102144442 has 16 divisors (see below), whose sum is σ = 154330623259272. Its totient is φ = 49779635008320.

The previous prime is 101223102144391. The next prime is 101223102144509. The reversal of 101223102144442 is 244441201322101.

It can be written as a sum of positive squares in 4 ways, for example, as 35482286803401 + 65740815341041 = 5956701^2 + 8108071^2 .

It is a super-2 number, since 2×101223102144442² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15737053 + ... + 21215584.

Almost surely, 2^{101223102144442} is an apocalyptic number.

101223102144442 is a deficient number, since it is larger than the sum of its proper divisors (53107521114830).

101223102144442 is a wasteful number, since it uses less digits than its factorization.

101223102144442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36975153.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 101223102144442 its reverse (244441201322101), we get a palindrome (345664303466543).

The spelling of 101223102144442 in words is "one hundred one trillion, two hundred twenty-three billion, one hundred two million, one hundred forty-four thousand, four hundred forty-two".