210220140223441 has 4 divisors (see below), whose sum is σ = 211038117423012. Its totient is φ = 209402163023872.

The previous prime is 210220140223403. The next prime is 210220140223501. The reversal of 210220140223441 is 144322041022012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 109107864411841 + 101112275811600 = 10445471^2 + 10055460^2 .

It is a cyclic number.

It is not a de Polignac number, because 210220140223441 - 2²³ = 210220131834833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210220840223441) 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, 408988599400 + ... + 408988599913.

It is an arithmetic number, because the mean of its divisors is an integer number (52759529355753).

Almost surely, 2^{210220140223441} is an apocalyptic number.

It is an amenable number.

210220140223441 is a deficient number, since it is larger than the sum of its proper divisors (817977199571).

210220140223441 is an equidigital number, since it uses as much as digits as its factorization.

210220140223441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817977199570.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 210220140223441 its reverse (144322041022012), we get a palindrome (354542181245453).

The spelling of 210220140223441 in words is "two hundred ten trillion, two hundred twenty billion, one hundred forty million, two hundred twenty-three thousand, four hundred forty-one".