20120022332231 has 4 divisors (see below), whose sum is σ = 20124573348264. Its totient is φ = 20115471316200.

The previous prime is 20120022332227. The next prime is 20120022332233. The reversal of 20120022332231 is 13223322002102.

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

It is a cyclic number.

It is not a de Polignac number, because 20120022332231 - 2² = 20120022332227 is a prime.

It is a super-2 number, since 2×20120022332231² (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 = 20120022332197 and 20120022332206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120022332233) 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, 2275501385 + ... + 2275510226.

It is an arithmetic number, because the mean of its divisors is an integer number (5031143337066).

Almost surely, 2^{20120022332231} is an apocalyptic number.

20120022332231 is a deficient number, since it is larger than the sum of its proper divisors (4551016033).

20120022332231 is an equidigital number, since it uses as much as digits as its factorization.

20120022332231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4551016032.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20120022332231 its reverse (13223322002102), we get a palindrome (33343344334333).

The spelling of 20120022332231 in words is "twenty trillion, one hundred twenty billion, twenty-two million, three hundred thirty-two thousand, two hundred thirty-one".