220130821497601 has 6 divisors (see below), whose sum is σ = 256070547456450. Its totient is φ = 188683561283616.

The previous prime is 220130821497593. The next prime is 220130821497677. The reversal of 220130821497601 is 106794128031022.

It can be written as a sum of positive squares in only one way, i.e., 216463688417025 + 3667133080576 = 14712705^2 + 1914976^2 .

It is not a de Polignac number, because 220130821497601 - 2³ = 220130821497593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220130827497601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2246232872376 + ... + 2246232872473.

It is an arithmetic number, because the mean of its divisors is an integer number (42678424576075).

Almost surely, 2^{220130821497601} is an apocalyptic number.

It is an amenable number.

220130821497601 is a deficient number, since it is larger than the sum of its proper divisors (35939725958849).

220130821497601 is an equidigital number, since it uses as much as digits as its factorization.

220130821497601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492465744863 (or 4492465744856 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 220130821497601 in words is "two hundred twenty trillion, one hundred thirty billion, eight hundred twenty-one million, four hundred ninety-seven thousand, six hundred one".