20121101220001 has 8 divisors (see below), whose sum is σ = 20405167574400. Its totient is φ = 19837053492480.

The previous prime is 20121101219983. The next prime is 20121101220029. The reversal of 20121101220001 is 10002210112102.

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 20121101220001 - 2⁷ = 20121101219873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20121101220601) 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, 2473861 + ... + 6808978.

It is an arithmetic number, because the mean of its divisors is an integer number (2550645946800).

Almost surely, 2^{20121101220001} is an apocalyptic number.

It is an amenable number.

20121101220001 is a deficient number, since it is larger than the sum of its proper divisors (284066354399).

20121101220001 is an equidigital number, since it uses as much as digits as its factorization.

20121101220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9313439.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20121101220001 its reverse (10002210112102), we get a palindrome (30123311332103).

The spelling of 20121101220001 in words is "twenty trillion, one hundred twenty-one billion, one hundred one million, two hundred twenty thousand, one".