20121333311322 has 40 divisors (see below), whose sum is σ = 45193785740532. Its totient is φ = 6691179700800.

The previous prime is 20121333311309. The next prime is 20121333311327. The reversal of 20121333311322 is 22311333312102.

20121333311322 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 1 + 3 + 3 + 331 + 1 + 322 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20117297123361 + 4036187961 = 4485231^2 + 63531^2 .

It is a super-2 number, since 2×20121333311322² (a number of 27 digits) contains 22 as substring.

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 (20121333311327) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 147444579 + ... + 147580982.

Almost surely, 2^{20121333311322} is an apocalyptic number.

20121333311322 is an abundant number, since it is smaller than the sum of its proper divisors (25072452429210).

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

20121333311322 is a wasteful number, since it uses less digits than its factorization.

20121333311322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295025996 (or 295025987 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 20121333311322 its reverse (22311333312102), we get a palindrome (42432666623424).

The spelling of 20121333311322 in words is "twenty trillion, one hundred twenty-one billion, three hundred thirty-three million, three hundred eleven thousand, three hundred twenty-two".