221100101120939 has 2 divisors, whose sum is σ = 221100101120940. Its totient is φ = 221100101120938.

The previous prime is 221100101120861. The next prime is 221100101120953. The reversal of 221100101120939 is 939021101001122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221100101120939 - 2⁸ = 221100101120683 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (221100101120039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110550050560469 + 110550050560470.

It is an arithmetic number, because the mean of its divisors is an integer number (110550050560470).

Almost surely, 2^{221100101120939} is an apocalyptic number.

221100101120939 is a deficient number, since it is larger than the sum of its proper divisors (1).

221100101120939 is an equidigital number, since it uses as much as digits as its factorization.

221100101120939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 32.

The spelling of 221100101120939 in words is "two hundred twenty-one trillion, one hundred billion, one hundred one million, one hundred twenty thousand, nine hundred thirty-nine".