1001011112212 has 12 divisors (see below), whose sum is σ = 1751800620276. Its totient is φ = 500496649280.

The previous prime is 1001011112203. The next prime is 1001011112281. The reversal of 1001011112212 is 2122111101001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 860118985476 + 140892126736 = 927426^2 + 375356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1001011112192 and 1001011112201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1970563 + ... + 2425930.

It is an arithmetic number, because the mean of its divisors is an integer number (145983385023).

Almost surely, 2^{1001011112212} is an apocalyptic number.

It is an amenable number.

1001011112212 is a deficient number, since it is larger than the sum of its proper divisors (750789508064).

1001011112212 is a wasteful number, since it uses less digits than its factorization.

1001011112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4453418 (or 4453416 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1001011112212 its reverse (2122111101001), we get a palindrome (3123122213213).

The spelling of 1001011112212 in words is "one trillion, one billion, eleven million, one hundred twelve thousand, two hundred twelve".