11220220011222 has 24 divisors (see below), whose sum is σ = 25148768991840. Its totient is φ = 3611105290800.

The previous prime is 11220220011191. The next prime is 11220220011223. The reversal of 11220220011222 is 22211002202211.

It is a happy number.

11220220011222 is a `hidden beast` number, since 1 + 1 + 220 + 220 + 0 + 1 + 1 + 222 = 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 = 11220220011195 and 11220220011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220220011223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10747336654 + ... + 10747337697.

It is an arithmetic number, because the mean of its divisors is an integer number (1047865374660).

Almost surely, 2^{11220220011222} is an apocalyptic number.

11220220011222 is an abundant number, since it is smaller than the sum of its proper divisors (13928548980618).

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

11220220011222 is a wasteful number, since it uses less digits than its factorization.

11220220011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21494674388 (or 21494674385 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11220220011222 its reverse (22211002202211), we get a palindrome (33431222213433).

The spelling of 11220220011222 in words is "eleven trillion, two hundred twenty billion, two hundred twenty million, eleven thousand, two hundred twenty-two".