20022220100231 has 2 divisors, whose sum is σ = 20022220100232. Its totient is φ = 20022220100230.

The previous prime is 20022220100203. The next prime is 20022220100237. The reversal of 20022220100231 is 13200102222002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20022220100231 is a prime.

It is a super-2 number, since 2×20022220100231² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20022220100237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011110050115 + 10011110050116.

It is an arithmetic number, because the mean of its divisors is an integer number (10011110050116).

Almost surely, 2^{20022220100231} is an apocalyptic number.

20022220100231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022220100231 is an equidigital number, since it uses as much as digits as its factorization.

20022220100231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20022220100231 its reverse (13200102222002), we get a palindrome (33222322322233).

The spelling of 20022220100231 in words is "twenty trillion, twenty-two billion, two hundred twenty million, one hundred thousand, two hundred thirty-one".