1220535023986 has 32 divisors (see below), whose sum is σ = 1863090875520. Its totient is φ = 599594007936.

The previous prime is 1220535023899. The next prime is 1220535023993. The reversal of 1220535023986 is 6893205350221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126122580 + ... + 126132256.

It is an arithmetic number, because the mean of its divisors is an integer number (58221589860).

Almost surely, 2^{1220535023986} is an apocalyptic number.

1220535023986 is a deficient number, since it is larger than the sum of its proper divisors (642555851534).

1220535023986 is a wasteful number, since it uses less digits than its factorization.

1220535023986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14178.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 1220535023986 in words is "one trillion, two hundred twenty billion, five hundred thirty-five million, twenty-three thousand, nine hundred eighty-six".