212323161332 has 24 divisors (see below), whose sum is σ = 394201328640. Its totient is φ = 99782202240.

The previous prime is 212323161319. The next prime is 212323161341. The reversal of 212323161332 is 233161323212.

It is a happy number.

It is a super-2 number, since 2×212323161332² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212323161295 and 212323161304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10989269 + ... + 11008572.

It is an arithmetic number, because the mean of its divisors is an integer number (16425055360).

Almost surely, 2^212323161332 is an apocalyptic number.

It is an amenable number.

212323161332 is a deficient number, since it is larger than the sum of its proper divisors (181878167308).

212323161332 is a wasteful number, since it uses less digits than its factorization.

212323161332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21997991 (or 21997989 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

Adding to 212323161332 its reverse (233161323212), we get a palindrome (445484484544).

The spelling of 212323161332 in words is "two hundred twelve billion, three hundred twenty-three million, one hundred sixty-one thousand, three hundred thirty-two".