1031221301412 has 48 divisors (see below), whose sum is σ = 2410262426880. Its totient is φ = 343157854368.

The previous prime is 1031221301359. The next prime is 1031221301413. The reversal of 1031221301412 is 2141031221301.

It is not an unprimeable number, because it can be changed into a prime (1031221301413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76250083 + ... + 76263605.

It is an arithmetic number, because the mean of its divisors is an integer number (50213800560).

Almost surely, 2^{1031221301412} is an apocalyptic number.

1031221301412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1031221301412 is an abundant number, since it is smaller than the sum of its proper divisors (1379041125468).

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

1031221301412 is a wasteful number, since it uses less digits than its factorization.

1031221301412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23832 (or 23830 counting only the distinct ones).

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

Adding to 1031221301412 its reverse (2141031221301), we get a palindrome (3172252522713).

The spelling of 1031221301412 in words is "one trillion, thirty-one billion, two hundred twenty-one million, three hundred one thousand, four hundred twelve".