101142221244 has 12 divisors (see below), whose sum is σ = 235998516264. Its totient is φ = 33714073744.

The previous prime is 101142221237. The next prime is 101142221249. The reversal of 101142221244 is 442122241101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101142221249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4214259207 + ... + 4214259230.

It is an arithmetic number, because the mean of its divisors is an integer number (19666543022).

Almost surely, 2^101142221244 is an apocalyptic number.

It is an amenable number.

101142221244 is an abundant number, since it is smaller than the sum of its proper divisors (134856295020).

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

101142221244 is a wasteful number, since it uses less digits than its factorization.

101142221244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8428518444 (or 8428518442 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 101142221244 its reverse (442122241101), we get a palindrome (543264462345).

The spelling of 101142221244 in words is "one hundred one billion, one hundred forty-two million, two hundred twenty-one thousand, two hundred forty-four".