1021002220011 has 8 divisors (see below), whose sum is σ = 1394539617744. Its totient is φ = 664066484480.

The previous prime is 1021002220009. The next prime is 1021002220067. The reversal of 1021002220011 is 1100222001201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021002220011 - 2¹ = 1021002220009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021002220001) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4150415406 + ... + 4150415651.

It is an arithmetic number, because the mean of its divisors is an integer number (174317452218).

Almost surely, 2^{1021002220011} is an apocalyptic number.

1021002220011 is a deficient number, since it is larger than the sum of its proper divisors (373537397733).

1021002220011 is an equidigital number, since it uses as much as digits as its factorization.

1021002220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8300831101.

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

Adding to 1021002220011 its reverse (1100222001201), we get a palindrome (2121224221212).

The spelling of 1021002220011 in words is "one trillion, twenty-one billion, two million, two hundred twenty thousand, eleven".