101221330120 has 32 divisors (see below), whose sum is σ = 227896888320. Its totient is φ = 40462061760.

The previous prime is 101221330117. The next prime is 101221330129. The reversal of 101221330120 is 21033122101.

It is a junction number, because it is equal to n+sod(n) for n = 101221330094 and 101221330103.

It is not an unprimeable number, because it can be changed into a prime (101221330129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765192 + ... + 887671.

It is an arithmetic number, because the mean of its divisors is an integer number (7121777760).

Almost surely, 2^101221330120 is an apocalyptic number.

101221330120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101221330120 is an abundant number, since it is smaller than the sum of its proper divisors (126675558200).

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

101221330120 is a wasteful number, since it uses less digits than its factorization.

101221330120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654405 (or 1654401 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 101221330120 its reverse (21033122101), we get a palindrome (122254452221).

The spelling of 101221330120 in words is "one hundred one billion, two hundred twenty-one million, three hundred thirty thousand, one hundred twenty".