212321120231 has 8 divisors (see below), whose sum is σ = 239610042000. Its totient is φ = 186363365440.

The previous prime is 212321120227. The next prime is 212321120233. The reversal of 212321120231 is 132021123212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212321120231 - 2² = 212321120227 is a prime.

It is a super-2 number, since 2×212321120231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212321120233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332791406 + ... + 332792043.

It is an arithmetic number, because the mean of its divisors is an integer number (29951255250).

Almost surely, 2^212321120231 is an apocalyptic number.

212321120231 is a deficient number, since it is larger than the sum of its proper divisors (27288921769).

212321120231 is a wasteful number, since it uses less digits than its factorization.

212321120231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665583489.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 212321120231 its reverse (132021123212), we get a palindrome (344342243443).

The spelling of 212321120231 in words is "two hundred twelve billion, three hundred twenty-one million, one hundred twenty thousand, two hundred thirty-one".