22220220222222 has 64 divisors (see below), whose sum is σ = 49586889305088. Its totient is φ = 6580165680000.

The previous prime is 22220220222203. The next prime is 22220220222253. The reversal of 22220220222222 is 22222202202222.

It is a junction number, because it is equal to n+sod(n) for n = 22220220222192 and 22220220222201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3368029 + ... + 7468872.

It is an arithmetic number, because the mean of its divisors is an integer number (774795145392).

Almost surely, 2^{22220220222222} is an apocalyptic number.

22220220222222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22220220222222 is an abundant number, since it is smaller than the sum of its proper divisors (27366669082866).

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

22220220222222 is a wasteful number, since it uses less digits than its factorization.

22220220222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10837625.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 22220220222222 its reverse (22222202202222), we get a palindrome (44442422424444).

It can be divided in two parts, 222202202222 and 22, that multiplied together give a palindrome (4888448448884).

The spelling of 22220220222222 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twenty-two".