21121200001183 has 2 divisors, whose sum is σ = 21121200001184. Its totient is φ = 21121200001182.

The previous prime is 21121200001171. The next prime is 21121200001201. The reversal of 21121200001183 is 38110000212112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21121200001183 - 2⁹ = 21121200000671 is a prime.

It is a super-2 number, since 2×21121200001183² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21121200001163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10560600000591 + 10560600000592.

It is an arithmetic number, because the mean of its divisors is an integer number (10560600000592).

Almost surely, 2^{21121200001183} is an apocalyptic number.

21121200001183 is a deficient number, since it is larger than the sum of its proper divisors (1).

21121200001183 is an equidigital number, since it uses as much as digits as its factorization.

21121200001183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 21121200001183 its reverse (38110000212112), we get a palindrome (59231200213295).

The spelling of 21121200001183 in words is "twenty-one trillion, one hundred twenty-one billion, two hundred million, one thousand, one hundred eighty-three".