312222144102 has 64 divisors (see below), whose sum is σ = 684987494400. Its totient is φ = 94088887200.

The previous prime is 312222144061. The next prime is 312222144119. The reversal of 312222144102 is 201441222213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31818777 + ... + 31828587.

It is an arithmetic number, because the mean of its divisors is an integer number (10702929600).

Almost surely, 2^312222144102 is an apocalyptic number.

312222144102 is an abundant number, since it is smaller than the sum of its proper divisors (372765350298).

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

312222144102 is a wasteful number, since it uses less digits than its factorization.

312222144102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12449.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 312222144102 its reverse (201441222213), we get a palindrome (513663366315).

The spelling of 312222144102 in words is "three hundred twelve billion, two hundred twenty-two million, one hundred forty-four thousand, one hundred two".