212021131233 has 48 divisors (see below), whose sum is σ = 316260236160. Its totient is φ = 125890232832.

The previous prime is 212021131229. The next prime is 212021131243. The reversal of 212021131233 is 332131120212.

It is not a de Polignac number, because 212021131233 - 2² = 212021131229 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212021131213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17797483 + ... + 17809391.

It is an arithmetic number, because the mean of its divisors is an integer number (6588754920).

Almost surely, 2^212021131233 is an apocalyptic number.

It is an amenable number.

212021131233 is a deficient number, since it is larger than the sum of its proper divisors (104239104927).

212021131233 is a wasteful number, since it uses less digits than its factorization.

212021131233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12934 (or 12915 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 212021131233 its reverse (332131120212), we get a palindrome (544152251445).

The spelling of 212021131233 in words is "two hundred twelve billion, twenty-one million, one hundred thirty-one thousand, two hundred thirty-three".