222212212220000 has 120 divisors (see below), whose sum is σ = 546743254991472. Its totient is φ = 88873848000000.

The previous prime is 222212212219997. The next prime is 222212212220021. The reversal of 222212212220000 is 22212212222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 161334245 + ... + 162705755.

Almost surely, 2^{222212212220000} is an apocalyptic number.

222212212220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222212212220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273371627495736).

222212212220000 is an abundant number, since it is smaller than the sum of its proper divisors (324531042771472).

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

222212212220000 is an equidigital number, since it uses as much as digits as its factorization.

222212212220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379642 (or 1379619 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222212212220000 its reverse (22212212222), we get a palindrome (222234424432222).

The spelling of 222212212220000 in words is "two hundred twenty-two trillion, two hundred twelve billion, two hundred twelve million, two hundred twenty thousand".