1111001012212 has 48 divisors (see below), whose sum is σ = 2421755747712. Its totient is φ = 434221488000.

The previous prime is 1111001012201. The next prime is 1111001012213. The reversal of 1111001012212 is 2122101001111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1111001012192 and 1111001012201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111001012213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18356539 + ... + 18416962.

It is an arithmetic number, because the mean of its divisors is an integer number (50453244744).

Almost surely, 2^{1111001012212} is an apocalyptic number.

It is an amenable number.

1111001012212 is an abundant number, since it is smaller than the sum of its proper divisors (1310754735500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111001012212 is a wasteful number, since it uses less digits than its factorization.

1111001012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36773608 (or 36773606 counting only the distinct ones).

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

Adding to 1111001012212 its reverse (2122101001111), we get a palindrome (3233102013323).

The spelling of 1111001012212 in words is "one trillion, one hundred eleven billion, one million, twelve thousand, two hundred twelve".