1031222321212 has 12 divisors (see below), whose sum is σ = 1848654649296. Its totient is φ = 503035278560.

The previous prime is 1031222321203. The next prime is 1031222321257. The reversal of 1031222321212 is 2121232221301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3143970328 + ... + 3143970655.

It is an arithmetic number, because the mean of its divisors is an integer number (154054554108).

Almost surely, 2^{1031222321212} is an apocalyptic number.

It is an amenable number.

1031222321212 is a deficient number, since it is larger than the sum of its proper divisors (817432328084).

1031222321212 is a wasteful number, since it uses less digits than its factorization.

1031222321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6287941028 (or 6287941026 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1031222321212 its reverse (2121232221301), we get a palindrome (3152454542513).

The spelling of 1031222321212 in words is "one trillion, thirty-one billion, two hundred twenty-two million, three hundred twenty-one thousand, two hundred twelve".