1121001101 has 4 divisors (see below), whose sum is σ = 1222910304. Its totient is φ = 1019091900.

The previous prime is 1121001047. The next prime is 1121001107. The reversal of 1121001101 is 1011001211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1121001101 - 2¹⁴ = 1120984717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121001107) 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, 50954585 + ... + 50954606.

It is an arithmetic number, because the mean of its divisors is an integer number (305727576).

Almost surely, 2^1121001101 is an apocalyptic number.

1121001101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121001101 is a deficient number, since it is larger than the sum of its proper divisors (101909203).

1121001101 is a wasteful number, since it uses less digits than its factorization.

1121001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101909202.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 1121001101 is about 33481.3545275576. The cubic root of 1121001101 is about 1038.8081455498.

Adding to 1121001101 its reverse (1011001211), we get a palindrome (2132002312).

The spelling of 1121001101 in words is "one billion, one hundred twenty-one million, one thousand, one hundred one".