1220002031 has 2 divisors, whose sum is σ = 1220002032. Its totient is φ = 1220002030.

The previous prime is 1220002019. The next prime is 1220002039. The reversal of 1220002031 is 1302000221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1302000221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220002031 - 2¹⁰ = 1220001007 is a prime.

It is a super-2 number, since 2×1220002031² = 2976809911288249922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220002039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610001015 + 610001016.

It is an arithmetic number, because the mean of its divisors is an integer number (610001016).

Almost surely, 2^1220002031 is an apocalyptic number.

1220002031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220002031 is an equidigital number, since it uses as much as digits as its factorization.

1220002031 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 11.

The square root of 1220002031 is about 34928.5274668143. The cubic root of 1220002031 is about 1068.5303230950.

Adding to 1220002031 its reverse (1302000221), we get a palindrome (2522002252).

The spelling of 1220002031 in words is "one billion, two hundred twenty million, two thousand, thirty-one".