11111211022 has 8 divisors (see below), whose sum is σ = 17204455872. Its totient is φ = 5376392400.

The previous prime is 11111210983. The next prime is 11111211031. The reversal of 11111211022 is 22011211111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11111210993 and 11111211011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89606479 + ... + 89606602.

It is an arithmetic number, because the mean of its divisors is an integer number (2150556984).

Almost surely, 2^11111211022 is an apocalyptic number.

11111211022 is a deficient number, since it is larger than the sum of its proper divisors (6093244850).

11111211022 is a wasteful number, since it uses less digits than its factorization.

11111211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179213114.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11111211022 its reverse (22011211111), we get a palindrome (33122422133).

The spelling of 11111211022 in words is "eleven billion, one hundred eleven million, two hundred eleven thousand, twenty-two".