1212022199953 has 2 divisors, whose sum is σ = 1212022199954. Its totient is φ = 1212022199952.

The previous prime is 1212022199923. The next prime is 1212022199963. The reversal of 1212022199953 is 3599912202121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 612919883664 + 599102316289 = 782892^2 + 774017^2 .

It is an emirp because it is prime and its reverse (3599912202121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212022199953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212022199923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606011099976 + 606011099977.

It is an arithmetic number, because the mean of its divisors is an integer number (606011099977).

Almost surely, 2^{1212022199953} is an apocalyptic number.

It is an amenable number.

1212022199953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212022199953 is an equidigital number, since it uses as much as digits as its factorization.

1212022199953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 46.

The spelling of 1212022199953 in words is "one trillion, two hundred twelve billion, twenty-two million, one hundred ninety-nine thousand, nine hundred fifty-three".