1021445334355 has 16 divisors (see below), whose sum is σ = 1243082248128. Its totient is φ = 805592592000.

The previous prime is 1021445334323. The next prime is 1021445334379. The reversal of 1021445334355 is 5534335441201.

It is not a de Polignac number, because 1021445334355 - 2⁵ = 1021445334323 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 5640925 + ... + 5819185.

It is an arithmetic number, because the mean of its divisors is an integer number (77692640508).

Almost surely, 2^{1021445334355} is an apocalyptic number.

1021445334355 is a deficient number, since it is larger than the sum of its proper divisors (221636913773).

1021445334355 is a wasteful number, since it uses less digits than its factorization.

1021445334355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194478.

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 1021445334355 in words is "one trillion, twenty-one billion, four hundred forty-five million, three hundred thirty-four thousand, three hundred fifty-five".