1112122221001 has 8 divisors (see below), whose sum is σ = 1213439457600. Its totient is φ = 1010840853840.

The previous prime is 1112122220983. The next prime is 1112122221053. The reversal of 1112122221001 is 1001222212111.

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 1112122221001 - 2¹⁹ = 1112121696713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112122221401) 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, 8902506 + ... + 9026563.

It is an arithmetic number, because the mean of its divisors is an integer number (151679932200).

Almost surely, 2^{1112122221001} is an apocalyptic number.

1112122221001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112122221001 is a deficient number, since it is larger than the sum of its proper divisors (101317236599).

1112122221001 is a wasteful number, since it uses less digits than its factorization.

1112122221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17934719.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1112122221001 its reverse (1001222212111), we get a palindrome (2113344433112).

The spelling of 1112122221001 in words is "one trillion, one hundred twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, one".