1321122352122 has 16 divisors (see below), whose sum is σ = 2935827449280. Its totient is φ = 440374117356.

The previous prime is 1321122352073. The next prime is 1321122352127. The reversal of 1321122352122 is 2212532211231.

1321122352122 is a `hidden beast` number, since 1 + 3 + 2 + 112 + 2 + 3 + 521 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1321122352127) 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, 12232614318 + ... + 12232614425.

It is an arithmetic number, because the mean of its divisors is an integer number (183489215580).

Almost surely, 2^{1321122352122} is an apocalyptic number.

1321122352122 is an abundant number, since it is smaller than the sum of its proper divisors (1614705097158).

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

1321122352122 is a wasteful number, since it uses less digits than its factorization.

1321122352122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24465228754 (or 24465228748 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

Adding to 1321122352122 its reverse (2212532211231), we get a palindrome (3533654563353).

The spelling of 1321122352122 in words is "one trillion, three hundred twenty-one billion, one hundred twenty-two million, three hundred fifty-two thousand, one hundred twenty-two".