1001012111212 has 6 divisors (see below), whose sum is σ = 1751771194628. Its totient is φ = 500506055604.

The previous prime is 1001012111173. The next prime is 1001012111227. The reversal of 1001012111212 is 2121112101001.

It is a happy number.

1001012111212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1001012111212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1001012111192 and 1001012111201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125126513898 + ... + 125126513905.

Almost surely, 2^{1001012111212} is an apocalyptic number.

It is an amenable number.

1001012111212 is a deficient number, since it is larger than the sum of its proper divisors (750759083416).

1001012111212 is a wasteful number, since it uses less digits than its factorization.

1001012111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250253027807 (or 250253027805 counting only the distinct ones).

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

Adding to 1001012111212 its reverse (2121112101001), we get a palindrome (3122124212213).

The spelling of 1001012111212 in words is "one trillion, one billion, twelve million, one hundred eleven thousand, two hundred twelve".