120000101221 has 48 divisors (see below), whose sum is σ = 164623052160. Its totient is φ = 84475739520.

The previous prime is 120000101203. The next prime is 120000101231. The reversal of 120000101221 is 122101000021.

It is not a de Polignac number, because 120000101221 - 2¹¹ = 120000099173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120000101198 and 120000101207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000101231) 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 47 ways as a sum of consecutive naturals, for example, 2184075 + ... + 2238343.

It is an arithmetic number, because the mean of its divisors is an integer number (3429646920).

Almost surely, 2^120000101221 is an apocalyptic number.

120000101221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120000101221 is a deficient number, since it is larger than the sum of its proper divisors (44622950939).

120000101221 is a wasteful number, since it uses less digits than its factorization.

120000101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54394 (or 54347 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 120000101221 its reverse (122101000021), we get a palindrome (242101101242).

The spelling of 120000101221 in words is "one hundred twenty billion, one hundred one thousand, two hundred twenty-one".