212302021233 has 4 divisors (see below), whose sum is σ = 283069361648. Its totient is φ = 141534680820.

The previous prime is 212302021231. The next prime is 212302021277. The reversal of 212302021233 is 332120203212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 212302021233 - 2¹ = 212302021231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212302021231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35383670203 + ... + 35383670208.

It is an arithmetic number, because the mean of its divisors is an integer number (70767340412).

Almost surely, 2^212302021233 is an apocalyptic number.

It is an amenable number.

212302021233 is a deficient number, since it is larger than the sum of its proper divisors (70767340415).

212302021233 is an equidigital number, since it uses as much as digits as its factorization.

212302021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70767340414.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212302021233 its reverse (332120203212), we get a palindrome (544422224445).

The spelling of 212302021233 in words is "two hundred twelve billion, three hundred two million, twenty-one thousand, two hundred thirty-three".