212222130312 has 32 divisors (see below), whose sum is σ = 553622950080. Its totient is φ = 67665026880.

The previous prime is 212222130277. The next prime is 212222130331. The reversal of 212222130312 is 213031222212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192229639 + ... + 192230742.

It is an arithmetic number, because the mean of its divisors is an integer number (17300717190).

Almost surely, 2^212222130312 is an apocalyptic number.

It is an amenable number.

212222130312 is an abundant number, since it is smaller than the sum of its proper divisors (341400819768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212222130312 is a wasteful number, since it uses less digits than its factorization.

212222130312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384460413 (or 384460409 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212222130312 its reverse (213031222212), we get a palindrome (425253352524).

The spelling of 212222130312 in words is "two hundred twelve billion, two hundred twenty-two million, one hundred thirty thousand, three hundred twelve".