1222423400311 has 2 divisors, whose sum is σ = 1222423400312. Its totient is φ = 1222423400310.

The previous prime is 1222423400309. The next prime is 1222423400333. The reversal of 1222423400311 is 1130043242221.

It is a weak prime.

It is an emirp because it is prime and its reverse (1130043242221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222423400311 - 2¹ = 1222423400309 is a prime.

Together with 1222423400309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222423400351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611211700155 + 611211700156.

It is an arithmetic number, because the mean of its divisors is an integer number (611211700156).

Almost surely, 2^{1222423400311} is an apocalyptic number.

1222423400311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222423400311 is an equidigital number, since it uses as much as digits as its factorization.

1222423400311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1222423400311 its reverse (1130043242221), we get a palindrome (2352466642532).

The spelling of 1222423400311 in words is "one trillion, two hundred twenty-two billion, four hundred twenty-three million, four hundred thousand, three hundred eleven".