1001021012212 has 24 divisors (see below), whose sum is σ = 1904855528576. Its totient is φ = 457524164448.

The previous prime is 1001021012207. The next prime is 1001021012219. The reversal of 1001021012212 is 2122101201001.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1001021012192 and 1001021012201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001021012219) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 93443208 + ... + 93453919.

Almost surely, 2^{1001021012212} is an apocalyptic number.

It is an amenable number.

1001021012212 is a deficient number, since it is larger than the sum of its proper divisors (903834516364).

1001021012212 is a wasteful number, since it uses less digits than its factorization.

1001021012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186897247 (or 186897245 counting only the distinct ones).

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

Adding to 1001021012212 its reverse (2122101201001), we get a palindrome (3123122213213).

The spelling of 1001021012212 in words is "one trillion, one billion, twenty-one million, twelve thousand, two hundred twelve".