1111102122021 has 8 divisors (see below), whose sum is σ = 1483102872864. Its totient is φ = 739918059600.

The previous prime is 1111102121989. The next prime is 1111102122079. The reversal of 1111102122021 is 1202212011111.

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 1111102122021 - 2⁵ = 1111102121989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111102122521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204168930 + ... + 204174371.

It is an arithmetic number, because the mean of its divisors is an integer number (185387859108).

Almost surely, 2^{1111102122021} is an apocalyptic number.

It is an amenable number.

1111102122021 is a deficient number, since it is larger than the sum of its proper divisors (372000750843).

1111102122021 is an equidigital number, since it uses as much as digits as its factorization.

1111102122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408344211.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1111102122021 its reverse (1202212011111), we get a palindrome (2313314133132).

The spelling of 1111102122021 in words is "one trillion, one hundred eleven billion, one hundred two million, one hundred twenty-two thousand, twenty-one".