3111312201222 has 16 divisors (see below), whose sum is σ = 6277691876400. Its totient is φ = 1027926154752.

The previous prime is 3111312201157. The next prime is 3111312201287. The reversal of 3111312201222 is 2221022131113.

It is an interprime number because it is at equal distance from previous prime (3111312201157) and next prime (3111312201287).

It is a super-2 number, since 2×3111312201222² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2294477347 + ... + 2294478702.

It is an arithmetic number, because the mean of its divisors is an integer number (392355742275).

Almost surely, 2^{3111312201222} is an apocalyptic number.

3111312201222 is an abundant number, since it is smaller than the sum of its proper divisors (3166379675178).

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

3111312201222 is a wasteful number, since it uses less digits than its factorization.

3111312201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4588956167.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 3111312201222 its reverse (2221022131113), we get a palindrome (5332334332335).

The spelling of 3111312201222 in words is "three trillion, one hundred eleven billion, three hundred twelve million, two hundred one thousand, two hundred twenty-two".