1121165101 has 16 divisors (see below), whose sum is σ = 1312781184. Its totient is φ = 937468224.

The previous prime is 1121165081. The next prime is 1121165117. The reversal of 1121165101 is 1015611211.

It is not a de Polignac number, because 1121165101 - 2⁷ = 1121164973 is a prime.

It is a super-2 number, since 2×1121165101² = 2514022367400680402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121165161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303075 + ... + 306751.

It is an arithmetic number, because the mean of its divisors is an integer number (82048824).

Almost surely, 2^1121165101 is an apocalyptic number.

It is an amenable number.

1121165101 is a deficient number, since it is larger than the sum of its proper divisors (191616083).

1121165101 is a wasteful number, since it uses less digits than its factorization.

1121165101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4740.

The product of its (nonzero) digits is 60, while the sum is 19.

The square root of 1121165101 is about 33483.8035623195. The cubic root of 1121165101 is about 1038.8588015299.

Adding to 1121165101 its reverse (1015611211), we get a palindrome (2136776312).

The spelling of 1121165101 in words is "one billion, one hundred twenty-one million, one hundred sixty-five thousand, one hundred one".