11211111012122 has 8 divisors (see below), whose sum is σ = 19219047449376. Its totient is φ = 4804761862332.

The previous prime is 11211111012077. The next prime is 11211111012131. The reversal of 11211111012122 is 22121011111211.

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

It is a super-2 number, since 2×11211111012122² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11211111012122.

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, 400396821848 + ... + 400396821875.

It is an arithmetic number, because the mean of its divisors is an integer number (2402380931172).

Almost surely, 2^{11211111012122} is an apocalyptic number.

11211111012122 is a deficient number, since it is larger than the sum of its proper divisors (8007936437254).

11211111012122 is an equidigital number, since it uses as much as digits as its factorization.

11211111012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800793643732.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11211111012122 its reverse (22121011111211), we get a palindrome (33332122123333).

The spelling of 11211111012122 in words is "eleven trillion, two hundred eleven billion, one hundred eleven million, twelve thousand, one hundred twenty-two".