212323221130 has 16 divisors (see below), whose sum is σ = 386475977160. Its totient is φ = 83975026432.

The previous prime is 212323221101. The next prime is 212323221137. The reversal of 212323221130 is 31122323212.

It can be written as a sum of positive squares in 4 ways, for example, as 63020579521 + 149302641609 = 251039^2 + 386397^2 .

It is not an unprimeable number, because it can be changed into a prime (212323221137) 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, 119281819 + ... + 119283598.

Almost surely, 2^212323221130 is an apocalyptic number.

212323221130 is a deficient number, since it is larger than the sum of its proper divisors (174152756030).

212323221130 is a wasteful number, since it uses less digits than its factorization.

212323221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238565513.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212323221130 its reverse (31122323212), we get a palindrome (243445544342).

The spelling of 212323221130 in words is "two hundred twelve billion, three hundred twenty-three million, two hundred twenty-one thousand, one hundred thirty".