120100001021111 has 2 divisors, whose sum is σ = 120100001021112. Its totient is φ = 120100001021110.

The previous prime is 120100001021081. The next prime is 120100001021179. The reversal of 120100001021111 is 111120100001021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120100001021111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120100001021092 and 120100001021101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120100001021411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60050000510555 + 60050000510556.

It is an arithmetic number, because the mean of its divisors is an integer number (60050000510556).

Almost surely, 2^{120100001021111} is an apocalyptic number.

120100001021111 is a deficient number, since it is larger than the sum of its proper divisors (1).

120100001021111 is an equidigital number, since it uses as much as digits as its factorization.

120100001021111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 120100001021111 its reverse (111120100001021), we get a palindrome (231220101022132).

It can be divided in two parts, 120100001021 and 111, that multiplied together give a palindrome (13331100113331).

The spelling of 120100001021111 in words is "one hundred twenty trillion, one hundred billion, one million, twenty-one thousand, one hundred eleven".