312010011222 has 128 divisors (see below), whose sum is σ = 830297932800. Its totient is φ = 75850338816.

The previous prime is 312010011217. The next prime is 312010011223. The reversal of 312010011222 is 222110010213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312010011223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22597 + ... + 790272.

It is an arithmetic number, because the mean of its divisors is an integer number (6486702600).

Almost surely, 2^312010011222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312010011222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415148966400).

312010011222 is an abundant number, since it is smaller than the sum of its proper divisors (518287921578).

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

312010011222 is a wasteful number, since it uses less digits than its factorization.

312010011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812950.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 312010011222 its reverse (222110010213), we get a palindrome (534120021435).

The spelling of 312010011222 in words is "three hundred twelve billion, ten million, eleven thousand, two hundred twenty-two".