21120201202211 has 2 divisors, whose sum is σ = 21120201202212. Its totient is φ = 21120201202210.

The previous prime is 21120201202207. The next prime is 21120201202213. The reversal of 21120201202211 is 11220210202112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21120201202211 - 2² = 21120201202207 is a prime.

It is a super-2 number, since 2×21120201202211² (a number of 27 digits) contains 22 as substring.

Together with 21120201202213, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21120201202211.

It is not a weakly prime, because it can be changed into another prime (21120201202213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10560100601105 + 10560100601106.

It is an arithmetic number, because the mean of its divisors is an integer number (10560100601106).

Almost surely, 2^{21120201202211} is an apocalyptic number.

21120201202211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21120201202211 is an equidigital number, since it uses as much as digits as its factorization.

21120201202211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21120201202211 its reverse (11220210202112), we get a palindrome (32340411404323).

The spelling of 21120201202211 in words is "twenty-one trillion, one hundred twenty billion, two hundred one million, two hundred two thousand, two hundred eleven".