1222112334551 has 2 divisors, whose sum is σ = 1222112334552. Its totient is φ = 1222112334550.

The previous prime is 1222112334481. The next prime is 1222112334623. The reversal of 1222112334551 is 1554332112221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222112334551 - 2³⁰ = 1221038592727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222112334251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611056167275 + 611056167276.

It is an arithmetic number, because the mean of its divisors is an integer number (611056167276).

Almost surely, 2^{1222112334551} is an apocalyptic number.

1222112334551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222112334551 is an equidigital number, since it uses as much as digits as its factorization.

1222112334551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 32.

Adding to 1222112334551 its reverse (1554332112221), we get a palindrome (2776444446772).

The spelling of 1222112334551 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, three hundred thirty-four thousand, five hundred fifty-one".