20202120112001 has 16 divisors (see below), whose sum is σ = 21327157915200. Its totient is φ = 19083266915328.

The previous prime is 20202120111989. The next prime is 20202120112003. The reversal of 20202120112001 is 10021102120202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202120112001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202120112003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100618730 + ... + 100819308.

It is an arithmetic number, because the mean of its divisors is an integer number (1332947369700).

Almost surely, 2^{20202120112001} is an apocalyptic number.

It is an amenable number.

20202120112001 is a deficient number, since it is larger than the sum of its proper divisors (1125037803199).

20202120112001 is a wasteful number, since it uses less digits than its factorization.

20202120112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215968.

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

Adding to 20202120112001 its reverse (10021102120202), we get a palindrome (30223222232203).

The spelling of 20202120112001 in words is "twenty trillion, two hundred two billion, one hundred twenty million, one hundred twelve thousand, one".