1214101111 has 4 divisors (see below), whose sum is σ = 1214297992. Its totient is φ = 1213904232.

The previous prime is 1214101079. The next prime is 1214101123. The reversal of 1214101111 is 1111014121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1111014121 = 7 ⋅158716303.

It is a cyclic number.

It is not a de Polignac number, because 1214101111 - 2⁵ = 1214101079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1214101091 and 1214101100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214101181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88881 + ... + 101626.

It is an arithmetic number, because the mean of its divisors is an integer number (303574498).

Almost surely, 2^1214101111 is an apocalyptic number.

1214101111 is a deficient number, since it is larger than the sum of its proper divisors (196881).

1214101111 is an equidigital number, since it uses as much as digits as its factorization.

1214101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196880.

The product of its (nonzero) digits is 8, while the sum is 13.

The square root of 1214101111 is about 34843.9537222744. The cubic root of 1214101111 is about 1066.8047780910.

Adding to 1214101111 its reverse (1111014121), we get a palindrome (2325115232).

The spelling of 1214101111 in words is "one billion, two hundred fourteen million, one hundred one thousand, one hundred eleven".