130121221011 has 4 divisors (see below), whose sum is σ = 173494961352. Its totient is φ = 86747480672.

The previous prime is 130121220991. The next prime is 130121221019. The reversal of 130121221011 is 110122121031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130121221011 - 2⁹ = 130121220499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130121221019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21686870166 + ... + 21686870171.

It is an arithmetic number, because the mean of its divisors is an integer number (43373740338).

Almost surely, 2^130121221011 is an apocalyptic number.

130121221011 is a deficient number, since it is larger than the sum of its proper divisors (43373740341).

130121221011 is an equidigital number, since it uses as much as digits as its factorization.

130121221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43373740340.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 130121221011 its reverse (110122121031), we get a palindrome (240243342042).

The spelling of 130121221011 in words is "one hundred thirty billion, one hundred twenty-one million, two hundred twenty-one thousand, eleven".