1001212220986 has 8 divisors (see below), whose sum is σ = 1509441775380. Its totient is φ = 498064962528.

The previous prime is 1001212220971. The next prime is 1001212221011. The reversal of 1001212220986 is 6890222121001.

1001212220986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 930173447025 + 71038773961 = 964455^2 + 266531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1001212220986² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270573491 + ... + 1270574278.

Almost surely, 2^{1001212220986} is an apocalyptic number.

1001212220986 is a deficient number, since it is larger than the sum of its proper divisors (508229554394).

1001212220986 is a wasteful number, since it uses less digits than its factorization.

1001212220986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541147968.

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

Adding to 1001212220986 its reverse (6890222121001), we get a palindrome (7891434341987).

The spelling of 1001212220986 in words is "one trillion, one billion, two hundred twelve million, two hundred twenty thousand, nine hundred eighty-six".