1121112101 has 2 divisors, whose sum is σ = 1121112102. Its totient is φ = 1121112100.

The previous prime is 1121112089. The next prime is 1121112133. The reversal of 1121112101 is 1012111211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 602457025 + 518655076 = 24545^2 + 22774^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121112101 - 2²² = 1116917797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121115101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560556050 + 560556051.

It is an arithmetic number, because the mean of its divisors is an integer number (560556051).

Almost surely, 2^1121112101 is an apocalyptic number.

It is an amenable number.

1121112101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121112101 is an equidigital number, since it uses as much as digits as its factorization.

1121112101 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.

The square root of 1121112101 is about 33483.0121255541. The cubic root of 1121112101 is about 1038.8424315400.

Adding to 1121112101 its reverse (1012111211), we get a palindrome (2133223312).

It can be divided in two parts, 112111210 and 1, that added together give a palindrome (112111211).

The spelling of 1121112101 in words is "one billion, one hundred twenty-one million, one hundred twelve thousand, one hundred one".