121120000221 has 16 divisors (see below), whose sum is σ = 176205818880. Its totient is φ = 73393030320.

The previous prime is 121120000163. The next prime is 121120000229. The reversal of 121120000221 is 122000021121.

It is not a de Polignac number, because 121120000221 - 2¹¹ = 121119998173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121120000197 and 121120000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120000229) 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 15 ways as a sum of consecutive naturals, for example, 135381 + ... + 510458.

It is an arithmetic number, because the mean of its divisors is an integer number (11012863680).

Almost surely, 2^121120000221 is an apocalyptic number.

121120000221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121120000221 is a deficient number, since it is larger than the sum of its proper divisors (55085818659).

121120000221 is a wasteful number, since it uses less digits than its factorization.

121120000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651536.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121120000221 its reverse (122000021121), we get a palindrome (243120021342).

The spelling of 121120000221 in words is "one hundred twenty-one billion, one hundred twenty million, two hundred twenty-one", and thus it is an aban number.