1011021233312 has 12 divisors (see below), whose sum is σ = 1990448053146. Its totient is φ = 505510616640.

The previous prime is 1011021233309. The next prime is 1011021233317. The reversal of 1011021233312 is 2133321201101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 839429769616 + 171591463696 = 916204^2 + 414236^2 .

It is not an unprimeable number, because it can be changed into a prime (1011021233317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15797206739 + ... + 15797206802.

Almost surely, 2^{1011021233312} is an apocalyptic number.

It is an amenable number.

1011021233312 is a deficient number, since it is larger than the sum of its proper divisors (979426819834).

1011021233312 is an equidigital number, since it uses as much as digits as its factorization.

1011021233312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31594413551 (or 31594413543 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1011021233312 its reverse (2133321201101), we get a palindrome (3144342434413).

The spelling of 1011021233312 in words is "one trillion, eleven billion, twenty-one million, two hundred thirty-three thousand, three hundred twelve".