220002031 has 2 divisors, whose sum is σ = 220002032. Its totient is φ = 220002030.

The previous prime is 220001953. The next prime is 220002053. The reversal of 220002031 is 130200022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220002031 is a prime.

It is a super-2 number, since 2×220002031² = 96801787288249922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220001999 and 220002017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220002131) 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, 110001015 + 110001016.

It is an arithmetic number, because the mean of its divisors is an integer number (110001016).

Almost surely, 2^220002031 is an apocalyptic number.

220002031 is a deficient number, since it is larger than the sum of its proper divisors (1).

220002031 is an equidigital number, since it uses as much as digits as its factorization.

220002031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 220002031 is about 14832.4654390293. The cubic root of 220002031 is about 603.6829313654.

Adding to 220002031 its reverse (130200022), we get a palindrome (350202053).

The spelling of 220002031 in words is "two hundred twenty million, two thousand, thirty-one".