1312201122 has 16 divisors (see below), whose sum is σ = 2630951712. Its totient is φ = 436308800.

The previous prime is 1312201081. The next prime is 1312201127. The reversal of 1312201122 is 2211022131.

It is not an unprimeable number, because it can be changed into a prime (1312201127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270288 + ... + 275099.

It is an arithmetic number, because the mean of its divisors is an integer number (164434482).

Almost surely, 2^1312201122 is an apocalyptic number.

1312201122 is an abundant number, since it is smaller than the sum of its proper divisors (1318750590).

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

1312201122 is a wasteful number, since it uses less digits than its factorization.

1312201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545793.

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

The square root of 1312201122 is about 36224.3167223345. The cubic root of 1312201122 is about 1094.7966712393.

Adding to 1312201122 its reverse (2211022131), we get a palindrome (3523223253).

The spelling of 1312201122 in words is "one billion, three hundred twelve million, two hundred one thousand, one hundred twenty-two".