221130000001 has 4 divisors (see below), whose sum is σ = 221250771904. Its totient is φ = 221009228100.

The previous prime is 221129999971. The next prime is 221130000023. The reversal of 221130000001 is 100000031122.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100000031122 = 2 ⋅50000015561.

It is a cyclic number.

It is not a de Polignac number, because 221130000001 - 2³¹ = 218982516353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221130000031) 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, 60383205 + ... + 60386866.

It is an arithmetic number, because the mean of its divisors is an integer number (55312692976).

Almost surely, 2^221130000001 is an apocalyptic number.

It is an amenable number.

221130000001 is a deficient number, since it is larger than the sum of its proper divisors (120771903).

221130000001 is a wasteful number, since it uses less digits than its factorization.

221130000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120771902.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 221130000001 its reverse (100000031122), we get a palindrome (321130031123).

The spelling of 221130000001 in words is "two hundred twenty-one billion, one hundred thirty million, one", and thus it is an aban number.