1220122010977 has 2 divisors, whose sum is σ = 1220122010978. Its totient is φ = 1220122010976.

The previous prime is 1220122010969. The next prime is 1220122011049. The reversal of 1220122010977 is 7790102210221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1015491536656 + 204630474321 = 1007716^2 + 452361^2 .

It is an emirp because it is prime and its reverse (7790102210221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220122010977 - 2³ = 1220122010969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220122010927) 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, 610061005488 + 610061005489.

It is an arithmetic number, because the mean of its divisors is an integer number (610061005489).

Almost surely, 2^{1220122010977} is an apocalyptic number.

It is an amenable number.

1220122010977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220122010977 is an equidigital number, since it uses as much as digits as its factorization.

1220122010977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 1220122010977 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, ten thousand, nine hundred seventy-seven".