1011101001212 has 12 divisors (see below), whose sum is σ = 1794348256176. Its totient is φ = 498430070880.

The previous prime is 1011101001191. The next prime is 1011101001217. The reversal of 1011101001212 is 2121001011101.

It is a junction number, because it is equal to n+sod(n) for n = 1011101001193 and 1011101001202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011101001217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1780107113 + ... + 1780107680.

It is an arithmetic number, because the mean of its divisors is an integer number (149529021348).

Almost surely, 2^{1011101001212} is an apocalyptic number.

It is an amenable number.

1011101001212 is a deficient number, since it is larger than the sum of its proper divisors (783247254964).

1011101001212 is a wasteful number, since it uses less digits than its factorization.

1011101001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560214868 (or 3560214866 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1011101001212 its reverse (2121001011101), we get a palindrome (3132102012313).

The spelling of 1011101001212 in words is "one trillion, eleven billion, one hundred one million, one thousand, two hundred twelve".