111101220021007 has 2 divisors, whose sum is σ = 111101220021008. Its totient is φ = 111101220021006.

The previous prime is 111101220020993. The next prime is 111101220021059. The reversal of 111101220021007 is 700120022101111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111101220021007 - 2¹¹ = 111101220018959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111101220025007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550610010503 + 55550610010504.

It is an arithmetic number, because the mean of its divisors is an integer number (55550610010504).

Almost surely, 2^{111101220021007} is an apocalyptic number.

111101220021007 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101220021007 is an equidigital number, since it uses as much as digits as its factorization.

111101220021007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 111101220021007 its reverse (700120022101111), we get a palindrome (811221242122118).

The spelling of 111101220021007 in words is "one hundred eleven trillion, one hundred one billion, two hundred twenty million, twenty-one thousand, seven".