20121313322 has 16 divisors (see below), whose sum is σ = 34862596992. Its totient is φ = 8608048320.

The previous prime is 20121313321. The next prime is 20121313349. The reversal of 20121313322 is 22331312102.

It is a junction number, because it is equal to n+sod(n) for n = 20121313294 and 20121313303.

It is not an unprimeable number, because it can be changed into a prime (20121313321) 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, 26899778 + ... + 26900525.

It is an arithmetic number, because the mean of its divisors is an integer number (2178912312).

Almost surely, 2^20121313322 is an apocalyptic number.

20121313322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20121313322 is a deficient number, since it is larger than the sum of its proper divisors (14741283670).

20121313322 is a wasteful number, since it uses less digits than its factorization.

20121313322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53800333.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20121313322 its reverse (22331312102), we get a palindrome (42452625424).

The spelling of 20121313322 in words is "twenty billion, one hundred twenty-one million, three hundred thirteen thousand, three hundred twenty-two".