1021111102219 has 8 divisors (see below), whose sum is σ = 1099687241520. Its totient is φ = 942539124576.

The previous prime is 1021111102189. The next prime is 1021111102373. The reversal of 1021111102219 is 9122011111201.

It is a happy number.

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 1021111102219 - 2²¹ = 1021109005067 is a prime.

It is a super-2 number, since 2×1021111102219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021111102219.

It is not an unprimeable number, because it can be changed into a prime (1021111102019) 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, 521212 + ... + 1521145.

It is an arithmetic number, because the mean of its divisors is an integer number (137460905190).

Almost surely, 2^{1021111102219} is an apocalyptic number.

1021111102219 is a deficient number, since it is larger than the sum of its proper divisors (78576139301).

1021111102219 is a wasteful number, since it uses less digits than its factorization.

1021111102219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080829.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 1021111102219 in words is "one trillion, twenty-one billion, one hundred eleven million, one hundred two thousand, two hundred nineteen".