121021011000001 has 8 divisors (see below), whose sum is σ = 138314935102400. Its totient is φ = 103728388958928.

The previous prime is 121021010999981. The next prime is 121021011000007. The reversal of 121021011000001 is 100000110120121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121021011000001 - 2¹⁷ = 121021010868929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121021011000007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325316151 + ... + 325687948.

It is an arithmetic number, because the mean of its divisors is an integer number (17289366887800).

Almost surely, 2^{121021011000001} is an apocalyptic number.

It is an amenable number.

121021011000001 is a deficient number, since it is larger than the sum of its proper divisors (17293924102399).

121021011000001 is an equidigital number, since it uses as much as digits as its factorization.

121021011000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651030663.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121021011000001 its reverse (100000110120121), we get a palindrome (221021121120122).

The spelling of 121021011000001 in words is "one hundred twenty-one trillion, twenty-one billion, eleven million, one", and thus it is an aban number.