101221021124 has 12 divisors (see below), whose sum is σ = 177181738944. Its totient is φ = 50597667144.

The previous prime is 101221021091. The next prime is 101221021129. The reversal of 101221021124 is 421120122101.

It is not an unprimeable number, because it can be changed into a prime (101221021129) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3193112 + ... + 3224655.

It is an arithmetic number, because the mean of its divisors is an integer number (14765144912).

Almost surely, 2^101221021124 is an apocalyptic number.

It is an amenable number.

101221021124 is a deficient number, since it is larger than the sum of its proper divisors (75960717820).

101221021124 is a wasteful number, since it uses less digits than its factorization.

101221021124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421714 (or 6421712 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101221021124 its reverse (421120122101), we get a palindrome (522341143225).

The spelling of 101221021124 in words is "one hundred one billion, two hundred twenty-one million, twenty-one thousand, one hundred twenty-four".