1001220011212 has 12 divisors (see below), whose sum is σ = 1774313944480. Its totient is φ = 494273169936.

The previous prime is 1001220011179. The next prime is 1001220011279. The reversal of 1001220011212 is 2121100221001.

It is a junction number, because it is equal to n+sod(n) for n = 1001220011192 and 1001220011201.

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, 1584208563 + ... + 1584209194.

Almost surely, 2^{1001220011212} is an apocalyptic number.

It is an amenable number.

1001220011212 is a deficient number, since it is larger than the sum of its proper divisors (773093933268).

1001220011212 is a wasteful number, since it uses less digits than its factorization.

1001220011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168417840 (or 3168417838 counting only the distinct ones).

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

Adding to 1001220011212 its reverse (2121100221001), we get a palindrome (3122320232213).

The spelling of 1001220011212 in words is "one trillion, one billion, two hundred twenty million, eleven thousand, two hundred twelve".