121020001011201 has 16 divisors (see below), whose sum is σ = 162816954854400. Its totient is φ = 79954754418000.

The previous prime is 121020001011193. The next prime is 121020001011211. The reversal of 121020001011201 is 102110100020121.

It is not a de Polignac number, because 121020001011201 - 2³ = 121020001011193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121020001011211) 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 15 ways as a sum of consecutive naturals, for example, 403662045 + ... + 403961738.

It is an arithmetic number, because the mean of its divisors is an integer number (10176059678400).

Almost surely, 2^{121020001011201} is an apocalyptic number.

It is an amenable number.

121020001011201 is a deficient number, since it is larger than the sum of its proper divisors (41796953843199).

121020001011201 is a wasteful number, since it uses less digits than its factorization.

121020001011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807624236.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121020001011201 its reverse (102110100020121), we get a palindrome (223130101031322).

The spelling of 121020001011201 in words is "one hundred twenty-one trillion, twenty billion, one million, eleven thousand, two hundred one".