312342121222 has 16 divisors (see below), whose sum is σ = 477126219600. Its totient is φ = 153307516320.

The previous prime is 312342121199. The next prime is 312342121229. The reversal of 312342121222 is 222121243213.

It is a super-3 number, since 3×312342121222³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312342121229) 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, 1783029 + ... + 1950352.

It is an arithmetic number, because the mean of its divisors is an integer number (29820388725).

Almost surely, 2^312342121222 is an apocalyptic number.

312342121222 is a deficient number, since it is larger than the sum of its proper divisors (164784098378).

312342121222 is a wasteful number, since it uses less digits than its factorization.

312342121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734151.

The product of its digits is 2304, while the sum is 25.

Adding to 312342121222 its reverse (222121243213), we get a palindrome (534463364435).

The spelling of 312342121222 in words is "three hundred twelve billion, three hundred forty-two million, one hundred twenty-one thousand, two hundred twenty-two".