1000021021333 has 4 divisors (see below), whose sum is σ = 1001236114528. Its totient is φ = 998805928140.

The previous prime is 1000021021319. The next prime is 1000021021361. The reversal of 1000021021333 is 3331201200001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1000021021333 - 2⁵ = 1000021021301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000021051333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607545363 + ... + 607547008.

It is an arithmetic number, because the mean of its divisors is an integer number (250309028632).

Almost surely, 2^{1000021021333} is an apocalyptic number.

It is an amenable number.

1000021021333 is a deficient number, since it is larger than the sum of its proper divisors (1215093195).

1000021021333 is an equidigital number, since it uses as much as digits as its factorization.

1000021021333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215093194.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1000021021333 its reverse (3331201200001), we get a palindrome (4331222221334).

The spelling of 1000021021333 in words is "one trillion, twenty-one million, twenty-one thousand, three hundred thirty-three".