1220018952623 has 2 divisors, whose sum is σ = 1220018952624. Its totient is φ = 1220018952622.

The previous prime is 1220018952577. The next prime is 1220018952727. The reversal of 1220018952623 is 3262598100221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220018952623 - 2⁸ = 1220018952367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220018957623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610009476311 + 610009476312.

It is an arithmetic number, because the mean of its divisors is an integer number (610009476312).

Almost surely, 2^{1220018952623} is an apocalyptic number.

1220018952623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220018952623 is an equidigital number, since it uses as much as digits as its factorization.

1220018952623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 1220018952623 in words is "one trillion, two hundred twenty billion, eighteen million, nine hundred fifty-two thousand, six hundred twenty-three".