10143220144021 has 4 divisors (see below), whose sum is σ = 10143233584972. Its totient is φ = 10143206703072.

The previous prime is 10143220143989. The next prime is 10143220144039. The reversal of 10143220144021 is 12044102234101.

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 3734672200900 + 6408547943121 = 1932530^2 + 2531511^2 .

It is a cyclic number.

It is not a de Polignac number, because 10143220144021 - 2⁵ = 10143220143989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10143220144621) 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, 5516616 + ... + 7121761.

It is an arithmetic number, because the mean of its divisors is an integer number (2535808396243).

Almost surely, 2^{10143220144021} is an apocalyptic number.

It is an amenable number.

10143220144021 is a deficient number, since it is larger than the sum of its proper divisors (13440951).

10143220144021 is an equidigital number, since it uses as much as digits as its factorization.

10143220144021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440950.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 10143220144021 its reverse (12044102234101), we get a palindrome (22187322378122).

The spelling of 10143220144021 in words is "ten trillion, one hundred forty-three billion, two hundred twenty million, one hundred forty-four thousand, twenty-one".