1001012102212 has 24 divisors (see below), whose sum is σ = 1871833221720. Its totient is φ = 466742822400.

The previous prime is 1001012102191. The next prime is 1001012102221. The reversal of 1001012102212 is 2122012101001.

It can be written as a sum of positive squares in 4 ways, for example, as 378500570176 + 622511532036 = 615224^2 + 788994^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1001012102192 and 1001012102201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67519039 + ... + 67533862.

It is an arithmetic number, because the mean of its divisors is an integer number (77993050905).

Almost surely, 2^{1001012102212} is an apocalyptic number.

It is an amenable number.

1001012102212 is a deficient number, since it is larger than the sum of its proper divisors (870821119508).

1001012102212 is a wasteful number, since it uses less digits than its factorization.

1001012102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135053031 (or 135053029 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1001012102212 its reverse (2122012101001), we get a palindrome (3123024203213).

The spelling of 1001012102212 in words is "one trillion, one billion, twelve million, one hundred two thousand, two hundred twelve".