212223333131 has 4 divisors (see below), whose sum is σ = 215130502152. Its totient is φ = 209316164112.

The previous prime is 212223333103. The next prime is 212223333167. The reversal of 212223333131 is 131333322212.

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 212223333131 - 2⁶ = 212223333067 is a prime.

It is a super-2 number, since 2×212223333131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212223333131.

It is not an unprimeable number, because it can be changed into a prime (212223333181) 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, 1453584401 + ... + 1453584546.

It is an arithmetic number, because the mean of its divisors is an integer number (53782625538).

Almost surely, 2^212223333131 is an apocalyptic number.

212223333131 is a deficient number, since it is larger than the sum of its proper divisors (2907169021).

212223333131 is an equidigital number, since it uses as much as digits as its factorization.

212223333131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907169020.

The product of its digits is 3888, while the sum is 26.

Adding to 212223333131 its reverse (131333322212), we get a palindrome (343556655343).

The spelling of 212223333131 in words is "two hundred twelve billion, two hundred twenty-three million, three hundred thirty-three thousand, one hundred thirty-one".