1101130221 has 16 divisors (see below), whose sum is σ = 1532874240. Its totient is φ = 701772720.

The previous prime is 1101130201. The next prime is 1101130229. The reversal of 1101130221 is 1220311011.

It is not a de Polignac number, because 1101130221 - 2⁵ = 1101130189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101130197 and 1101130206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101130229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163050 + ... + 169668.

It is an arithmetic number, because the mean of its divisors is an integer number (95804640).

Almost surely, 2^1101130221 is an apocalyptic number.

It is an amenable number.

1101130221 is a deficient number, since it is larger than the sum of its proper divisors (431744019).

1101130221 is a wasteful number, since it uses less digits than its factorization.

1101130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9056.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1101130221 is about 33183.2822517604. The cubic root of 1101130221 is about 1032.6335413067.

Adding to 1101130221 its reverse (1220311011), we get a palindrome (2321441232).

The spelling of 1101130221 in words is "one billion, one hundred one million, one hundred thirty thousand, two hundred twenty-one".