1201001021212 has 12 divisors (see below), whose sum is σ = 2101777098120. Its totient is φ = 600493278896.

The previous prime is 1201001021203. The next prime is 1201001021281. The reversal of 1201001021212 is 2121201001021.

It is a junction number, because it is equal to n+sod(n) for n = 1201001021192 and 1201001021201.

It is a congruent number.

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, 1425262 + ... + 2105557.

It is an arithmetic number, because the mean of its divisors is an integer number (175148091510).

Almost surely, 2^{1201001021212} is an apocalyptic number.

It is an amenable number.

1201001021212 is a deficient number, since it is larger than the sum of its proper divisors (900776076908).

1201001021212 is a wasteful number, since it uses less digits than its factorization.

1201001021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615860 (or 3615858 counting only the distinct ones).

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

Adding to 1201001021212 its reverse (2121201001021), we get a palindrome (3322202022233).

It can be divided in two parts, 1201001021 and 212, that multiplied together give a palindrome (254612216452).

The spelling of 1201001021212 in words is "one trillion, two hundred one billion, one million, twenty-one thousand, two hundred twelve".