121021010200001 has 4 divisors (see below), whose sum is σ = 122552921721600. Its totient is φ = 119489098678404.

The previous prime is 121021010199983. The next prime is 121021010200037. The reversal of 121021010200001 is 100002010120121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121021010200001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121021010200091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765955760681 + ... + 765955760838.

It is an arithmetic number, because the mean of its divisors is an integer number (30638230430400).

Almost surely, 2^{121021010200001} is an apocalyptic number.

It is an amenable number.

121021010200001 is a deficient number, since it is larger than the sum of its proper divisors (1531911521599).

121021010200001 is an equidigital number, since it uses as much as digits as its factorization.

121021010200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531911521598.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121021010200001 its reverse (100002010120121), we get a palindrome (221023020320122).

The spelling of 121021010200001 in words is "one hundred twenty-one trillion, twenty-one billion, ten million, two hundred thousand, one".