1011211212118 has 16 divisors (see below), whose sum is σ = 1569812598000. Its totient is φ = 487955718432.

The previous prime is 1011211212091. The next prime is 1011211212119. The reversal of 1011211212118 is 8112121121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011211212119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3710328 + ... + 3973531.

It is an arithmetic number, because the mean of its divisors is an integer number (98113287375).

Almost surely, 2^{1011211212118} is an apocalyptic number.

1011211212118 is a deficient number, since it is larger than the sum of its proper divisors (558601385882).

1011211212118 is a wasteful number, since it uses less digits than its factorization.

1011211212118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7686159.

The product of its (nonzero) digits is 64, while the sum is 22.

Adding to 1011211212118 its reverse (8112121121101), we get a palindrome (9123332333219).

The spelling of 1011211212118 in words is "one trillion, eleven billion, two hundred eleven million, two hundred twelve thousand, one hundred eighteen".