10142220003221 has 4 divisors (see below), whose sum is σ = 10491951727500. Its totient is φ = 9792488278944.

The previous prime is 10142220003211. The next prime is 10142220003281. The reversal of 10142220003221 is 12230002224101.

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 4926797290321 + 5215422712900 = 2219639^2 + 2283730^2 .

It is a cyclic number.

It is not a de Polignac number, because 10142220003221 - 2³⁰ = 10141146261397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10142220003193 and 10142220003202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10142220003211) 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, 174865862096 + ... + 174865862153.

It is an arithmetic number, because the mean of its divisors is an integer number (2622987931875).

Almost surely, 2^{10142220003221} is an apocalyptic number.

It is an amenable number.

10142220003221 is a deficient number, since it is larger than the sum of its proper divisors (349731724279).

10142220003221 is an equidigital number, since it uses as much as digits as its factorization.

10142220003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349731724278.

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

Adding to 10142220003221 its reverse (12230002224101), we get a palindrome (22372222227322).

The spelling of 10142220003221 in words is "ten trillion, one hundred forty-two billion, two hundred twenty million, three thousand, two hundred twenty-one".