312142223221010 has 96 divisors (see below), whose sum is σ = 721030967263152. Its totient is φ = 96378408161280.

The previous prime is 312142223220991. The next prime is 312142223221013. The reversal of 312142223221010 is 10122322241213.

It can be written as a sum of positive squares in 8 ways, for example, as 3606288354529 + 308535934866481 = 1899023^2 + 17565191^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (312142223221013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 597323207 + ... + 597845546.

Almost surely, 2^{312142223221010} is an apocalyptic number.

312142223221010 is an abundant number, since it is smaller than the sum of its proper divisors (408888744042142).

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

312142223221010 is a wasteful number, since it uses less digits than its factorization.

312142223221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195168828 (or 1195168821 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 312142223221010 its reverse (10122322241213), we get a palindrome (322264545462223).

The spelling of 312142223221010 in words is "three hundred twelve trillion, one hundred forty-two billion, two hundred twenty-three million, two hundred twenty-one thousand, ten".