1001122209977 has 2 divisors, whose sum is σ = 1001122209978. Its totient is φ = 1001122209976.

The previous prime is 1001122209929. The next prime is 1001122210003. The reversal of 1001122209977 is 7799022211001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 986070846121 + 15051363856 = 993011^2 + 122684^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001122209977 - 2⁸ = 1001122209721 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001122209377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500561104988 + 500561104989.

It is an arithmetic number, because the mean of its divisors is an integer number (500561104989).

Almost surely, 2^{1001122209977} is an apocalyptic number.

It is an amenable number.

1001122209977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001122209977 is an equidigital number, since it uses as much as digits as its factorization.

1001122209977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 41.

The spelling of 1001122209977 in words is "one trillion, one billion, one hundred twenty-two million, two hundred nine thousand, nine hundred seventy-seven".