222103023131021 has 4 divisors (see below), whose sum is σ = 222396422105532. Its totient is φ = 221809624156512.

The previous prime is 222103023130993. The next prime is 222103023131029. The reversal of 222103023131021 is 120131320301222.

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 173483933968900 + 48619089162121 = 13171330^2 + 6972739^2 .

It is a cyclic number.

It is not a de Polignac number, because 222103023131021 - 2³⁰ = 222101949389197 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 (222103023131029) 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, 146699486120 + ... + 146699487633.

It is an arithmetic number, because the mean of its divisors is an integer number (55599105526383).

Almost surely, 2^{222103023131021} is an apocalyptic number.

It is an amenable number.

222103023131021 is a deficient number, since it is larger than the sum of its proper divisors (293398974511).

222103023131021 is an equidigital number, since it uses as much as digits as its factorization.

222103023131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293398974510.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 222103023131021 its reverse (120131320301222), we get a palindrome (342234343432243).

The spelling of 222103023131021 in words is "two hundred twenty-two trillion, one hundred three billion, twenty-three million, one hundred thirty-one thousand, twenty-one".