11021122122112 has 16 divisors (see below), whose sum is σ = 21956141727900. Its totient is φ = 5510561060992.

The previous prime is 11021122122107. The next prime is 11021122122113. The reversal of 11021122122112 is 21122122112011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 11021122122112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021122122113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43051258162 + ... + 43051258417.

Almost surely, 2^{11021122122112} is an apocalyptic number.

It is an amenable number.

11021122122112 is a deficient number, since it is larger than the sum of its proper divisors (10935019605788).

11021122122112 is an frugal number, since it uses more digits than its factorization.

11021122122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86102516593 (or 86102516581 counting only the distinct ones).

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

Adding to 11021122122112 its reverse (21122122112011), we get a palindrome (32143244234123).

The spelling of 11021122122112 in words is "eleven trillion, twenty-one billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred twelve".