1212222110011 has 8 divisors (see below), whose sum is σ = 1322457940800. Its totient is φ = 1101991916040.

The previous prime is 1212222110003. The next prime is 1212222110051. The reversal of 1212222110011 is 1100112222121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212222110011 - 2³ = 1212222110003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212222110051) 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, 953121 + ... + 1825618.

It is an arithmetic number, because the mean of its divisors is an integer number (165307242600).

Almost surely, 2^{1212222110011} is an apocalyptic number.

1212222110011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1212222110011 is a deficient number, since it is larger than the sum of its proper divisors (110235830789).

1212222110011 is a wasteful number, since it uses less digits than its factorization.

1212222110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818409.

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

Adding to 1212222110011 its reverse (1100112222121), we get a palindrome (2312334332132).

The spelling of 1212222110011 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, one hundred ten thousand, eleven".