1012211201212 has 48 divisors (see below), whose sum is σ = 1867521277440. Its totient is φ = 478717791552.

The previous prime is 1012211201207. The next prime is 1012211201219. The reversal of 1012211201212 is 2121021122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012211201219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203784753 + ... + 203789719.

It is an arithmetic number, because the mean of its divisors is an integer number (38906693280).

Almost surely, 2^{1012211201212} is an apocalyptic number.

It is an amenable number.

1012211201212 is a deficient number, since it is larger than the sum of its proper divisors (855310076228).

1012211201212 is a wasteful number, since it uses less digits than its factorization.

1012211201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8650 (or 8648 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1012211201212 its reverse (2121021122101), we get a palindrome (3133232323313).

The spelling of 1012211201212 in words is "one trillion, twelve billion, two hundred eleven million, two hundred one thousand, two hundred twelve".