222872821213831 has 4 divisors (see below), whose sum is σ = 222873217206352. Its totient is φ = 222872425221312.

The previous prime is 222872821213829. The next prime is 222872821213843. The reversal of 222872821213831 is 138312128278222.

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

It is a cyclic number.

It is not a de Polignac number, because 222872821213831 - 2¹ = 222872821213829 is a prime.

It is a super-2 number, since 2×222872821213831² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222872821213331) 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, 197150826 + ... + 198278071.

It is an arithmetic number, because the mean of its divisors is an integer number (55718304301588).

Almost surely, 2^{222872821213831} is an apocalyptic number.

222872821213831 is a deficient number, since it is larger than the sum of its proper divisors (395992521).

222872821213831 is an equidigital number, since it uses as much as digits as its factorization.

222872821213831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395992520.

The product of its digits is 2064384, while the sum is 52.

The spelling of 222872821213831 in words is "two hundred twenty-two trillion, eight hundred seventy-two billion, eight hundred twenty-one million, two hundred thirteen thousand, eight hundred thirty-one".