1000221220011 has 8 divisors (see below), whose sum is σ = 1436215085200. Its totient is φ = 615520750752.

The previous prime is 1000221219997. The next prime is 1000221220043. The reversal of 1000221220011 is 1100221220001.

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

It is not a de Polignac number, because 1000221220011 - 2⁷ = 1000221219883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000221220051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12823348936 + ... + 12823349013.

It is an arithmetic number, because the mean of its divisors is an integer number (179526885650).

Almost surely, 2^{1000221220011} is an apocalyptic number.

1000221220011 is a deficient number, since it is larger than the sum of its proper divisors (435993865189).

1000221220011 is a wasteful number, since it uses less digits than its factorization.

1000221220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25646697965.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1000221220011 its reverse (1100221220001), we get a palindrome (2100442440012).

The spelling of 1000221220011 in words is "one trillion, two hundred twenty-one million, two hundred twenty thousand, eleven".