20220122212331 has 4 divisors (see below), whose sum is σ = 20220138510000. Its totient is φ = 20220105914664.

The previous prime is 20220122212313. The next prime is 20220122212357. The reversal of 20220122212331 is 13321222102202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20220122212331 is a prime.

It is a super-2 number, since 2×20220122212331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20220122212297 and 20220122212306.

It is not an unprimeable number, because it can be changed into a prime (20220122262331) 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, 6119336 + ... + 8825333.

It is an arithmetic number, because the mean of its divisors is an integer number (5055034627500).

Almost surely, 2^{20220122212331} is an apocalyptic number.

20220122212331 is a deficient number, since it is larger than the sum of its proper divisors (16297669).

20220122212331 is a wasteful number, since it uses less digits than its factorization.

20220122212331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16297668.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20220122212331 its reverse (13321222102202), we get a palindrome (33541344314533).

The spelling of 20220122212331 in words is "twenty trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twelve thousand, three hundred thirty-one".