11121211220122 has 32 divisors (see below), whose sum is σ = 17775307694592. Its totient is φ = 5207310347184.

The previous prime is 11121211220047. The next prime is 11121211220149. The reversal of 11121211220122 is 22102211212111.

It is a happy number.

It is a super-3 number, since 3×11121211220122³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11121211220122.

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, 10566468 + ... + 11571199.

It is an arithmetic number, because the mean of its divisors is an integer number (555478365456).

Almost surely, 2^{11121211220122} is an apocalyptic number.

11121211220122 is a deficient number, since it is larger than the sum of its proper divisors (6654096474470).

11121211220122 is a wasteful number, since it uses less digits than its factorization.

11121211220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22137922.

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

Adding to 11121211220122 its reverse (22102211212111), we get a palindrome (33223422432233).

The spelling of 11121211220122 in words is "eleven trillion, one hundred twenty-one billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty-two".