1100012201947 has 2 divisors, whose sum is σ = 1100012201948. Its totient is φ = 1100012201946.

The previous prime is 1100012201909. The next prime is 1100012201993. The reversal of 1100012201947 is 7491022100011.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100012201947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100012201147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550006100973 + 550006100974.

It is an arithmetic number, because the mean of its divisors is an integer number (550006100974).

Almost surely, 2^{1100012201947} is an apocalyptic number.

1100012201947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100012201947 is an equidigital number, since it uses as much as digits as its factorization.

1100012201947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

Adding to 1100012201947 its reverse (7491022100011), we get a palindrome (8591034301958).

The spelling of 1100012201947 in words is "one trillion, one hundred billion, twelve million, two hundred one thousand, nine hundred forty-seven".