1000000222211 has 4 divisors (see below), whose sum is σ = 1058823764712. Its totient is φ = 941176679712.

The previous prime is 1000000222201. The next prime is 1000000222271. The reversal of 1000000222211 is 1122220000001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000000222211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000000222192 and 1000000222201.

It is not an unprimeable number, because it can be changed into a prime (1000000222201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29411771225 + ... + 29411771258.

It is an arithmetic number, because the mean of its divisors is an integer number (264705941178).

Almost surely, 2^{1000000222211} is an apocalyptic number.

1000000222211 is a deficient number, since it is larger than the sum of its proper divisors (58823542501).

1000000222211 is an equidigital number, since it uses as much as digits as its factorization.

1000000222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58823542500.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1000000222211 its reverse (1122220000001), we get a palindrome (2122220222212).

The spelling of 1000000222211 in words is "one trillion, two hundred twenty-two thousand, two hundred eleven".