1121232101 has 6 divisors (see below), whose sum is σ = 1232428806. Its totient is φ = 1019301800.

The previous prime is 1121232067. The next prime is 1121232121. The reversal of 1121232101 is 1012321211.

It can be written as a sum of positive squares in only one way, i.e., 1064455876 + 56776225 = 32626^2 + 7535^2 .

It is not a de Polignac number, because 1121232101 - 2²⁶ = 1054123237 is a prime.

It is a super-2 number, since 2×1121232101² = 2514322848625748402, 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 (1121232121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4633070 + ... + 4633311.

It is an arithmetic number, because the mean of its divisors is an integer number (205404801).

Almost surely, 2^1121232101 is an apocalyptic number.

1121232101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121232101 is a deficient number, since it is larger than the sum of its proper divisors (111196705).

1121232101 is an equidigital number, since it uses as much as digits as its factorization.

1121232101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9266403 (or 9266392 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1121232101 is about 33484.8040310825. The cubic root of 1121232101 is about 1038.8794949298.

Adding to 1121232101 its reverse (1012321211), we get a palindrome (2133553312).

The spelling of 1121232101 in words is "one billion, one hundred twenty-one million, two hundred thirty-two thousand, one hundred one".