312213021022 has 8 divisors (see below), whose sum is σ = 535222321776. Its totient is φ = 133805580432.

The previous prime is 312213021011. The next prime is 312213021023. The reversal of 312213021022 is 220120312213.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312213021023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11150465023 + ... + 11150465050.

It is an arithmetic number, because the mean of its divisors is an integer number (66902790222).

Almost surely, 2^312213021022 is an apocalyptic number.

312213021022 is a deficient number, since it is larger than the sum of its proper divisors (223009300754).

312213021022 is a wasteful number, since it uses less digits than its factorization.

312213021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22300930082.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 312213021022 its reverse (220120312213), we get a palindrome (532333333235).

The spelling of 312213021022 in words is "three hundred twelve billion, two hundred thirteen million, twenty-one thousand, twenty-two".