20011120201201 has 4 divisors (see below), whose sum is σ = 20054908210852. Its totient is φ = 19967332191552.

The previous prime is 20011120201181. The next prime is 20011120201249. The reversal of 20011120201201 is 10210202111002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18001360325601 + 2009759875600 = 4242801^2 + 1417660^2 .

It is a cyclic number.

It is not a de Polignac number, because 20011120201201 - 2¹⁷ = 20011120070129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20011120201901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21894004140 + ... + 21894005053.

It is an arithmetic number, because the mean of its divisors is an integer number (5013727052713).

Almost surely, 2^{20011120201201} is an apocalyptic number.

It is an amenable number.

20011120201201 is a deficient number, since it is larger than the sum of its proper divisors (43788009651).

20011120201201 is an equidigital number, since it uses as much as digits as its factorization.

20011120201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43788009650.

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

Adding to 20011120201201 its reverse (10210202111002), we get a palindrome (30221322312203).

The spelling of 20011120201201 in words is "twenty trillion, eleven billion, one hundred twenty million, two hundred one thousand, two hundred one".