20120001212201 has 8 divisors (see below), whose sum is σ = 21949255958304. Its totient is φ = 18290773753920.

The previous prime is 20120001212183. The next prime is 20120001212231. The reversal of 20120001212201 is 10221210002102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20120001212201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120001212231) 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, 5264816 + ... + 8243681.

It is an arithmetic number, because the mean of its divisors is an integer number (2743656994788).

Almost surely, 2^{20120001212201} is an apocalyptic number.

It is an amenable number.

20120001212201 is a deficient number, since it is larger than the sum of its proper divisors (1829254746103).

20120001212201 is a wasteful number, since it uses less digits than its factorization.

20120001212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13643911.

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

Adding to 20120001212201 its reverse (10221210002102), we get a palindrome (30341211214303).

The spelling of 20120001212201 in words is "twenty trillion, one hundred twenty billion, one million, two hundred twelve thousand, two hundred one".