312213321002 has 16 divisors (see below), whose sum is σ = 511918380000. Its totient is φ = 141630741840.

The previous prime is 312213320989. The next prime is 312213321011. The reversal of 312213321002 is 200123312213.

It is a super-2 number, since 2×312213321002² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14208977 + ... + 14230932.

It is an arithmetic number, because the mean of its divisors is an integer number (31994898750).

Almost surely, 2^312213321002 is an apocalyptic number.

312213321002 is a deficient number, since it is larger than the sum of its proper divisors (199705058998).

312213321002 is a wasteful number, since it uses less digits than its factorization.

312213321002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28440421.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312213321002 its reverse (200123312213), we get a palindrome (512336633215).

The spelling of 312213321002 in words is "three hundred twelve billion, two hundred thirteen million, three hundred twenty-one thousand, two".