1321322101192 has 16 divisors (see below), whose sum is σ = 2483391783600. Its totient is φ = 659084292240.

The previous prime is 1321322101087. The next prime is 1321322101193. The reversal of 1321322101192 is 2911012231231.

It is a self number, because there is not a number n which added to its sum of digits gives 1321322101192.

It is not an unprimeable number, because it can be changed into a prime (1321322101193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197091234 + ... + 197097937.

It is an arithmetic number, because the mean of its divisors is an integer number (155211986475).

Almost surely, 2^{1321322101192} is an apocalyptic number.

It is an amenable number.

1321322101192 is a deficient number, since it is larger than the sum of its proper divisors (1162069682408).

1321322101192 is a wasteful number, since it uses less digits than its factorization.

1321322101192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394189596 (or 394189592 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 1321322101192 in words is "one trillion, three hundred twenty-one billion, three hundred twenty-two million, one hundred one thousand, one hundred ninety-two".