111022142021 has 8 divisors (see below), whose sum is σ = 130311703680. Its totient is φ = 92589894288.

The previous prime is 111022142009. The next prime is 111022142059. The reversal of 111022142021 is 120241220111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111022142021 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 (111022142221) 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, 214328201 + ... + 214328718.

It is an arithmetic number, because the mean of its divisors is an integer number (16288962960).

Almost surely, 2^111022142021 is an apocalyptic number.

It is an amenable number.

111022142021 is a deficient number, since it is larger than the sum of its proper divisors (19289561659).

111022142021 is an equidigital number, since it uses as much as digits as its factorization.

111022142021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428656963.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111022142021 its reverse (120241220111), we get a palindrome (231263362132).

The spelling of 111022142021 in words is "one hundred eleven billion, twenty-two million, one hundred forty-two thousand, twenty-one".