11111111200122 has 16 divisors (see below), whose sum is σ = 22822823006112. Its totient is φ = 3603603632400.

The previous prime is 11111111200069. The next prime is 11111111200181. The reversal of 11111111200122 is 22100211111111.

It is a super-2 number, since 2×11111111200122² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25025025004 + ... + 25025025447.

It is an arithmetic number, because the mean of its divisors is an integer number (1426426437882).

Almost surely, 2^{11111111200122} is an apocalyptic number.

11111111200122 is an abundant number, since it is smaller than the sum of its proper divisors (11711711805990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111111200122 is a wasteful number, since it uses less digits than its factorization.

11111111200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50050050493.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11111111200122 its reverse (22100211111111), we get a palindrome (33211322311233).

The spelling of 11111111200122 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, two hundred thousand, one hundred twenty-two".