1111011202021 has 8 divisors (see below), whose sum is σ = 1269741967040. Its totient is φ = 952284156768.

The previous prime is 1111011202009. The next prime is 1111011202073. The reversal of 1111011202021 is 1202021101111.

It is a happy number.

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

It is not a de Polignac number, because 1111011202021 - 2³³ = 1102421267429 is a prime.

It is a super-2 number, since 2×1111011202021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111011201992 and 1111011202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111011232021) 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, 257496 + ... + 1512721.

It is an arithmetic number, because the mean of its divisors is an integer number (158717745880).

Almost surely, 2^{1111011202021} is an apocalyptic number.

It is an amenable number.

1111011202021 is a deficient number, since it is larger than the sum of its proper divisors (158730765019).

1111011202021 is an equidigital number, since it uses as much as digits as its factorization.

1111011202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859883.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1111011202021 its reverse (1202021101111), we get a palindrome (2313032303132).

The spelling of 1111011202021 in words is "one trillion, one hundred eleven billion, eleven million, two hundred two thousand, twenty-one".