1212021112271 has 2 divisors, whose sum is σ = 1212021112272. Its totient is φ = 1212021112270.

The previous prime is 1212021112243. The next prime is 1212021112279. The reversal of 1212021112271 is 1722111202121.

It is a strong prime.

It is an emirp because it is prime and its reverse (1722111202121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212021112271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212021112279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606010556135 + 606010556136.

It is an arithmetic number, because the mean of its divisors is an integer number (606010556136).

Almost surely, 2^{1212021112271} is an apocalyptic number.

1212021112271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212021112271 is an equidigital number, since it uses as much as digits as its factorization.

1212021112271 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 23.

Adding to 1212021112271 its reverse (1722111202121), we get a palindrome (2934132314392).

The spelling of 1212021112271 in words is "one trillion, two hundred twelve billion, twenty-one million, one hundred twelve thousand, two hundred seventy-one".