1000221112222 has 8 divisors (see below), whose sum is σ = 1502378507736. Its totient is φ = 499428276312.

The previous prime is 1000221112201. The next prime is 1000221112237. The reversal of 1000221112222 is 2222111220001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1000221112222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1000221112196 and 1000221112205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341138068 + ... + 341140999.

It is an arithmetic number, because the mean of its divisors is an integer number (187797313467).

Almost surely, 2^{1000221112222} is an apocalyptic number.

1000221112222 is a deficient number, since it is larger than the sum of its proper divisors (502157395514).

1000221112222 is an equidigital number, since it uses as much as digits as its factorization.

1000221112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682279802.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1000221112222 its reverse (2222111220001), we get a palindrome (3222332332223).

The spelling of 1000221112222 in words is "one trillion, two hundred twenty-one million, one hundred twelve thousand, two hundred twenty-two".