312210122113222 has 4 divisors (see below), whose sum is σ = 468315183169836. Its totient is φ = 156105061056610.

The previous prime is 312210122113139. The next prime is 312210122113229. The reversal of 312210122113222 is 222311221012213.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312210122113229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78052530528304 + ... + 78052530528307.

It is an arithmetic number, because the mean of its divisors is an integer number (117078795792459).

Almost surely, 2^{312210122113222} is an apocalyptic number.

312210122113222 is a deficient number, since it is larger than the sum of its proper divisors (156105061056614).

312210122113222 is a wasteful number, since it uses less digits than its factorization.

312210122113222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156105061056613.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 312210122113222 its reverse (222311221012213), we get a palindrome (534521343125435).

The spelling of 312210122113222 in words is "three hundred twelve trillion, two hundred ten billion, one hundred twenty-two million, one hundred thirteen thousand, two hundred twenty-two".