121201011020986 has 16 divisors (see below), whose sum is σ = 195786643152744. Its totient is φ = 55938815426304.

The previous prime is 121201011020927. The next prime is 121201011020989. The reversal of 121201011020986 is 689020110102121.

It can be written as a sum of positive squares in 4 ways, for example, as 86420728875625 + 34780282145361 = 9296275^2 + 5897481^2 .

It is not an unprimeable number, because it can be changed into a prime (121201011020989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9230830 + ... + 18100006.

Almost surely, 2^{121201011020986} is an apocalyptic number.

121201011020986 is a deficient number, since it is larger than the sum of its proper divisors (74585632131758).

121201011020986 is a wasteful number, since it uses less digits than its factorization.

121201011020986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9394785.

The product of its (nonzero) digits is 3456, while the sum is 34.

The spelling of 121201011020986 in words is "one hundred twenty-one trillion, two hundred one billion, eleven million, twenty thousand, nine hundred eighty-six".