1111000102021 has 8 divisors (see below), whose sum is σ = 1134732700800. Its totient is φ = 1087271432448.

The previous prime is 1111000102013. The next prime is 1111000102027. The reversal of 1111000102021 is 1202010001111.

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 1111000102021 - 2³ = 1111000102013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111000101989 and 1111000102007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111000102027) 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, 407196 + ... + 1545253.

It is an arithmetic number, because the mean of its divisors is an integer number (141841587600).

Almost surely, 2^{1111000102021} is an apocalyptic number.

It is an amenable number.

1111000102021 is a deficient number, since it is larger than the sum of its proper divisors (23732598779).

1111000102021 is a wasteful number, since it uses less digits than its factorization.

1111000102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964603.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1111000102021 its reverse (1202010001111), we get a palindrome (2313010103132).

The spelling of 1111000102021 in words is "one trillion, one hundred eleven billion, one hundred two thousand, twenty-one".