20101120201 has 2 divisors, whose sum is σ = 20101120202. Its totient is φ = 20101120200.

The previous prime is 20101120189. The next prime is 20101120211. The reversal of 20101120201 is 10202110102.

It is an a-pointer prime, because the next prime (20101120211) can be obtained adding 20101120201 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16652612025 + 3448508176 = 129045^2 + 58724^2 .

It is a cyclic number.

It is not a de Polignac number, because 20101120201 - 2⁷ = 20101120073 is a prime.

It is not a weakly prime, because it can be changed into another prime (20101120211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050560100 + 10050560101.

It is an arithmetic number, because the mean of its divisors is an integer number (10050560101).

Almost surely, 2^20101120201 is an apocalyptic number.

It is an amenable number.

20101120201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101120201 is an equidigital number, since it uses as much as digits as its factorization.

20101120201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20101120201 its reverse (10202110102), we get a palindrome (30303230303).

It can be divided in two parts, 2010 and 1120201, that added together give a palindrome (1122211).

The spelling of 20101120201 in words is "twenty billion, one hundred one million, one hundred twenty thousand, two hundred one".