212231133011 has 12 divisors (see below), whose sum is σ = 221427354096. Its totient is φ = 203390843760.

The previous prime is 212231133007. The next prime is 212231133013. The reversal of 212231133011 is 110331132212.

It is a happy number.

It is not a de Polignac number, because 212231133011 - 2² = 212231133007 is a prime.

It is a super-2 number, since 2×212231133011² (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 (212231133013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 973076 + ... + 1171041.

It is an arithmetic number, because the mean of its divisors is an integer number (18452279508).

Almost surely, 2^212231133011 is an apocalyptic number.

212231133011 is a deficient number, since it is larger than the sum of its proper divisors (9196221085).

212231133011 is a wasteful number, since it uses less digits than its factorization.

212231133011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144282 (or 2144251 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 212231133011 its reverse (110331132212), we get a palindrome (322562265223).

The spelling of 212231133011 in words is "two hundred twelve billion, two hundred thirty-one million, one hundred thirty-three thousand, eleven".