1220111008927 has 2 divisors, whose sum is σ = 1220111008928. Its totient is φ = 1220111008926.

The previous prime is 1220111008847. The next prime is 1220111008939. The reversal of 1220111008927 is 7298001110221.

It is a strong prime.

It is an emirp because it is prime and its reverse (7298001110221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220111008927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220111008892 and 1220111008901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220111008027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610055504463 + 610055504464.

It is an arithmetic number, because the mean of its divisors is an integer number (610055504464).

Almost surely, 2^{1220111008927} is an apocalyptic number.

1220111008927 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220111008927 is an equidigital number, since it uses as much as digits as its factorization.

1220111008927 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 1220111008927 in words is "one trillion, two hundred twenty billion, one hundred eleven million, eight thousand, nine hundred twenty-seven".