121221020000201 has 16 divisors (see below), whose sum is σ = 132401184491520. Its totient is φ = 110067539022480.

The previous prime is 121221020000177. The next prime is 121221020000251. The reversal of 121221020000201 is 102000020122121.

It is a cyclic number.

It is not a de Polignac number, because 121221020000201 - 2⁶ = 121221020000137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121221020000251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744578930 + ... + 744741716.

It is an arithmetic number, because the mean of its divisors is an integer number (8275074030720).

Almost surely, 2^{121221020000201} is an apocalyptic number.

121221020000201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121221020000201 is a deficient number, since it is larger than the sum of its proper divisors (11180164491319).

121221020000201 is a wasteful number, since it uses less digits than its factorization.

121221020000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244324.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121221020000201 its reverse (102000020122121), we get a palindrome (223221040122322).

The spelling of 121221020000201 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty million, two hundred one", and thus it is an aban number.