212333021123 has 8 divisors (see below), whose sum is σ = 215560369920. Its totient is φ = 209107384200.

The previous prime is 212333021111. The next prime is 212333021149. The reversal of 212333021123 is 321120333212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212333021123 - 2²² = 212328826819 is a prime.

It is a super-2 number, since 2×212333021123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212333021323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176903 + ... + 675248.

It is an arithmetic number, because the mean of its divisors is an integer number (26945046240).

Almost surely, 2^212333021123 is an apocalyptic number.

212333021123 is a deficient number, since it is larger than the sum of its proper divisors (3227348797).

212333021123 is an equidigital number, since it uses as much as digits as its factorization.

212333021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855937.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 212333021123 its reverse (321120333212), we get a palindrome (533453354335).

The spelling of 212333021123 in words is "two hundred twelve billion, three hundred thirty-three million, twenty-one thousand, one hundred twenty-three".