11221202111947 has 2 divisors, whose sum is σ = 11221202111948. Its totient is φ = 11221202111946.

The previous prime is 11221202111923. The next prime is 11221202112019. The reversal of 11221202111947 is 74911120212211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221202111947 is a prime.

It is not a weakly prime, because it can be changed into another prime (11221202121947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610601055973 + 5610601055974.

It is an arithmetic number, because the mean of its divisors is an integer number (5610601055974).

Almost surely, 2^{11221202111947} is an apocalyptic number.

11221202111947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221202111947 is an equidigital number, since it uses as much as digits as its factorization.

11221202111947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 11221202111947 in words is "eleven trillion, two hundred twenty-one billion, two hundred two million, one hundred eleven thousand, nine hundred forty-seven".