11111213013122 has 16 divisors (see below), whose sum is σ = 17353217932344. Its totient is φ = 5331249744000.

The previous prime is 11111213013083. The next prime is 11111213013127. The reversal of 11111213013122 is 22131031211111.

It can be written as a sum of positive squares in 4 ways, for example, as 3402988188961 + 7708224824161 = 1844719^2 + 2776369^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11111213013094 and 11111213013103.

It is not an unprimeable number, because it can be changed into a prime (11111213013127) 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, 1110672029 + ... + 1110682032.

Almost surely, 2^{11111213013122} is an apocalyptic number.

11111213013122 is a deficient number, since it is larger than the sum of its proper divisors (6242004919222).

11111213013122 is a wasteful number, since it uses less digits than its factorization.

11111213013122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221354165.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 11111213013122 its reverse (22131031211111), we get a palindrome (33242244224233).

The spelling of 11111213013122 in words is "eleven trillion, one hundred eleven billion, two hundred thirteen million, thirteen thousand, one hundred twenty-two".