1012120220986 has 24 divisors (see below), whose sum is σ = 1767756313620. Its totient is φ = 433345856832.

The previous prime is 1012120220983. The next prime is 1012120221001. The reversal of 1012120220986 is 6890220212101.

It can be written as a sum of positive squares in 2 ways, for example, as 945816545961 + 66303675025 = 972531^2 + 257495^2 .

It is not an unprimeable number, because it can be changed into a prime (1012120220983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4897681 + ... + 5100148.

Almost surely, 2^{1012120220986} is an apocalyptic number.

1012120220986 is a deficient number, since it is larger than the sum of its proper divisors (755636092634).

1012120220986 is a wasteful number, since it uses less digits than its factorization.

1012120220986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9998878 (or 9998871 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 1012120220986 in words is "one trillion, twelve billion, one hundred twenty million, two hundred twenty thousand, nine hundred eighty-six".