20122212331 has 8 divisors (see below), whose sum is σ = 22612252320. Its totient is φ = 17766769152.

The previous prime is 20122212317. The next prime is 20122212353. The reversal of 20122212331 is 13321222102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20122212331 - 2⁷ = 20122212203 is a prime.

It is a super-2 number, since 2×20122212331² (a number of 21 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 = 20122212299 and 20122212308.

It is not an unprimeable number, because it can be changed into a prime (20122212301) 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, 33648886 + ... + 33649483.

It is an arithmetic number, because the mean of its divisors is an integer number (2826531540).

Almost surely, 2^20122212331 is an apocalyptic number.

20122212331 is a deficient number, since it is larger than the sum of its proper divisors (2490039989).

20122212331 is a wasteful number, since it uses less digits than its factorization.

20122212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67298405.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20122212331 its reverse (13321222102), we get a palindrome (33443434433).

The spelling of 20122212331 in words is "twenty billion, one hundred twenty-two million, two hundred twelve thousand, three hundred thirty-one".