222012111222220 has 24 divisors (see below), whose sum is σ = 508609563891408. Its totient is φ = 80731676808000.

The previous prime is 222012111222217. The next prime is 222012111222241. The reversal of 222012111222220 is 22222111210222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 222012111222191 and 222012111222200.

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, 504572979831 + ... + 504572980270.

It is an arithmetic number, because the mean of its divisors is an integer number (21192065162142).

Almost surely, 2^{222012111222220} is an apocalyptic number.

222012111222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222012111222220 is an abundant number, since it is smaller than the sum of its proper divisors (286597452669188).

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

222012111222220 is a wasteful number, since it uses less digits than its factorization.

222012111222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009145960121 (or 1009145960119 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222012111222220 its reverse (22222111210222), we get a palindrome (244234222432442).

The spelling of 222012111222220 in words is "two hundred twenty-two trillion, twelve billion, one hundred eleven million, two hundred twenty-two thousand, two hundred twenty".