1201222212923 has 2 divisors, whose sum is σ = 1201222212924. Its totient is φ = 1201222212922.

The previous prime is 1201222212899. The next prime is 1201222212929. The reversal of 1201222212923 is 3292122221021.

It is a strong prime.

It is an emirp because it is prime and its reverse (3292122221021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201222212923 - 2³⁸ = 926344305979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201222212929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600611106461 + 600611106462.

It is an arithmetic number, because the mean of its divisors is an integer number (600611106462).

Almost surely, 2^{1201222212923} is an apocalyptic number.

1201222212923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201222212923 is an equidigital number, since it uses as much as digits as its factorization.

1201222212923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 1201222212923 its reverse (3292122221021), we get a palindrome (4493344433944).

The spelling of 1201222212923 in words is "one trillion, two hundred one billion, two hundred twenty-two million, two hundred twelve thousand, nine hundred twenty-three".