1200222000977 has 2 divisors, whose sum is σ = 1200222000978. Its totient is φ = 1200222000976.

The previous prime is 1200222000953. The next prime is 1200222001081. The reversal of 1200222000977 is 7790002220021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 720705915136 + 479516085841 = 848944^2 + 692471^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200222000977 - 2¹⁰ = 1200221999953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200222000937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600111000488 + 600111000489.

It is an arithmetic number, because the mean of its divisors is an integer number (600111000489).

Almost surely, 2^{1200222000977} is an apocalyptic number.

It is an amenable number.

1200222000977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200222000977 is an equidigital number, since it uses as much as digits as its factorization.

1200222000977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 32.

Adding to 1200222000977 its reverse (7790002220021), we get a palindrome (8990224220998).

The spelling of 1200222000977 in words is "one trillion, two hundred billion, two hundred twenty-two million, nine hundred seventy-seven", and thus it is an aban number.