1331212022 has 16 divisors (see below), whose sum is σ = 2284422912. Its totient is φ = 569933160.

The previous prime is 1331212021. The next prime is 1331212031. The reversal of 1331212022 is 2202121331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331212021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34604 + ... + 62127.

It is an arithmetic number, because the mean of its divisors is an integer number (142776432).

Almost surely, 2^1331212022 is an apocalyptic number.

1331212022 is a deficient number, since it is larger than the sum of its proper divisors (953210890).

1331212022 is an equidigital number, since it uses as much as digits as its factorization.

1331212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97723.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1331212022 is about 36485.7783526678. The cubic root of 1331212022 is about 1100.0584051634.

Adding to 1331212022 its reverse (2202121331), we get a palindrome (3533333353).

The spelling of 1331212022 in words is "one billion, three hundred thirty-one million, two hundred twelve thousand, twenty-two".