1201222211983 has 2 divisors, whose sum is σ = 1201222211984. Its totient is φ = 1201222211982.

The previous prime is 1201222211933. The next prime is 1201222212007. The reversal of 1201222211983 is 3891122221021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201222211983 - 2¹⁷ = 1201222080911 is a prime.

It is a super-2 number, since 2×1201222211983² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201222211923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600611105991 + 600611105992.

It is an arithmetic number, because the mean of its divisors is an integer number (600611105992).

Almost surely, 2^{1201222211983} is an apocalyptic number.

1201222211983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201222211983 is an equidigital number, since it uses as much as digits as its factorization.

1201222211983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 1201222211983 in words is "one trillion, two hundred one billion, two hundred twenty-two million, two hundred eleven thousand, nine hundred eighty-three".