12220011211122 has 48 divisors (see below), whose sum is σ = 31105483089408. Its totient is φ = 3418184953440.

The previous prime is 12220011211091. The next prime is 12220011211139. The reversal of 12220011211122 is 22111211002221.

12220011211122 is a `hidden beast` number, since 122 + 200 + 11 + 211 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12220011211095 and 12220011211104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2373736978 + ... + 2373742125.

It is an arithmetic number, because the mean of its divisors is an integer number (648030897696).

Almost surely, 2^{12220011211122} is an apocalyptic number.

12220011211122 is an abundant number, since it is smaller than the sum of its proper divisors (18885471878286).

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

12220011211122 is a wasteful number, since it uses less digits than its factorization.

12220011211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4747479135 (or 4747479132 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12220011211122 its reverse (22111211002221), we get a palindrome (34331222213343).

The spelling of 12220011211122 in words is "twelve trillion, two hundred twenty billion, eleven million, two hundred eleven thousand, one hundred twenty-two".