12220212222222 has 16 divisors (see below), whose sum is σ = 25100976456912. Its totient is φ = 3963312072000.

The previous prime is 12220212222187. The next prime is 12220212222269. The reversal of 12220212222222 is 22222221202221.

12220212222222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12220212222222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12220212222192 and 12220212222201.

It is a congruent number.

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, 27523000279 + ... + 27523000722.

It is an arithmetic number, because the mean of its divisors is an integer number (1568811028557).

Almost surely, 2^{12220212222222} is an apocalyptic number.

12220212222222 is an abundant number, since it is smaller than the sum of its proper divisors (12880764234690).

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

12220212222222 is a wasteful number, since it uses less digits than its factorization.

12220212222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55046001043.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 12220212222222 its reverse (22222221202221), we get a palindrome (34442433424443).

The spelling of 12220212222222 in words is "twelve trillion, two hundred twenty billion, two hundred twelve million, two hundred twenty-two thousand, two hundred twenty-two".