20111222000027 has 2 divisors, whose sum is σ = 20111222000028. Its totient is φ = 20111222000026.

The previous prime is 20111221999931. The next prime is 20111222000041. The reversal of 20111222000027 is 72000022211102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20111222000027 - 2¹⁰ = 20111221999003 is a prime.

It is a super-2 number, since 2×20111222000027² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20111221999972 and 20111222000008.

It is not a weakly prime, because it can be changed into another prime (20111222000047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055611000013 + 10055611000014.

It is an arithmetic number, because the mean of its divisors is an integer number (10055611000014).

Almost surely, 2^{20111222000027} is an apocalyptic number.

20111222000027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111222000027 is an equidigital number, since it uses as much as digits as its factorization.

20111222000027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 20111222000027 its reverse (72000022211102), we get a palindrome (92111244211129).

The spelling of 20111222000027 in words is "twenty trillion, one hundred eleven billion, two hundred twenty-two million, twenty-seven", and thus it is an aban number.