220240132121 has 4 divisors (see below), whose sum is σ = 227344652544. Its totient is φ = 213135611700.

The previous prime is 220240132097. The next prime is 220240132199. The reversal of 220240132121 is 121231042022.

220240132121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 220240132121 - 2¹⁴ = 220240115737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220240132093 and 220240132102.

It is not an unprimeable number, because it can be changed into a prime (220240131121) 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, 3552260165 + ... + 3552260226.

It is an arithmetic number, because the mean of its divisors is an integer number (56836163136).

Almost surely, 2^220240132121 is an apocalyptic number.

It is an amenable number.

220240132121 is a deficient number, since it is larger than the sum of its proper divisors (7104520423).

220240132121 is an equidigital number, since it uses as much as digits as its factorization.

220240132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7104520422.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 220240132121 its reverse (121231042022), we get a palindrome (341471174143).

Subtracting from 220240132121 its reverse (121231042022), we obtain a palindrome (99009090099).

The spelling of 220240132121 in words is "two hundred twenty billion, two hundred forty million, one hundred thirty-two thousand, one hundred twenty-one".