11020012122111 has 64 divisors (see below), whose sum is σ = 16160307609600. Its totient is φ = 6652307160576.

The previous prime is 11020012122101. The next prime is 11020012122173. The reversal of 11020012122111 is 11122121002011.

It is a happy number.

It is not a de Polignac number, because 11020012122111 - 2¹⁵ = 11020012089343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020012122101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38570700 + ... + 38855358.

It is an arithmetic number, because the mean of its divisors is an integer number (252504806400).

Almost surely, 2^{11020012122111} is an apocalyptic number.

11020012122111 is a deficient number, since it is larger than the sum of its proper divisors (5140295487489).

11020012122111 is a wasteful number, since it uses less digits than its factorization.

11020012122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284988.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11020012122111 its reverse (11122121002011), we get a palindrome (22142133124122).

The spelling of 11020012122111 in words is "eleven trillion, twenty billion, twelve million, one hundred twenty-two thousand, one hundred eleven".