212210323331 has 16 divisors (see below), whose sum is σ = 228918140928. Its totient is φ = 196145320800.

The previous prime is 212210323327. The next prime is 212210323337. The reversal of 212210323331 is 133323012212.

It is a cyclic number.

It is not a de Polignac number, because 212210323331 - 2² = 212210323327 is a prime.

It is a super-2 number, since 2×212210323331² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212210323297 and 212210323306.

It is not an unprimeable number, because it can be changed into a prime (212210323337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262886 + ... + 702516.

It is an arithmetic number, because the mean of its divisors is an integer number (14307383808).

Almost surely, 2^212210323331 is an apocalyptic number.

212210323331 is a deficient number, since it is larger than the sum of its proper divisors (16707817597).

212210323331 is a wasteful number, since it uses less digits than its factorization.

212210323331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440362.

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

Adding to 212210323331 its reverse (133323012212), we get a palindrome (345533335543).

The spelling of 212210323331 in words is "two hundred twelve billion, two hundred ten million, three hundred twenty-three thousand, three hundred thirty-one".