11101212212122 has 32 divisors (see below), whose sum is σ = 17722149096960. Its totient is φ = 5197196524800.

The previous prime is 11101212212089. The next prime is 11101212212137. The reversal of 11101212212122 is 22121221210111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11101212212122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103356747 + ... + 103464097.

It is an arithmetic number, because the mean of its divisors is an integer number (553817159280).

Almost surely, 2^{11101212212122} is an apocalyptic number.

11101212212122 is a deficient number, since it is larger than the sum of its proper divisors (6620936884838).

11101212212122 is a wasteful number, since it uses less digits than its factorization.

11101212212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123006.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11101212212122 its reverse (22121221210111), we get a palindrome (33222433422233).

The spelling of 11101212212122 in words is "eleven trillion, one hundred one billion, two hundred twelve million, two hundred twelve thousand, one hundred twenty-two".