1020121122223 has 8 divisors (see below), whose sum is σ = 1165880310048. Its totient is φ = 874368834144.

The previous prime is 1020121122199. The next prime is 1020121122227. The reversal of 1020121122223 is 3222211210201.

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 1020121122223 - 2⁹ = 1020121121711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020121122223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020121122227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1404136 + ... + 2002957.

It is an arithmetic number, because the mean of its divisors is an integer number (145735038756).

Almost surely, 2^{1020121122223} is an apocalyptic number.

1020121122223 is a deficient number, since it is larger than the sum of its proper divisors (145759187825).

1020121122223 is an equidigital number, since it uses as much as digits as its factorization.

1020121122223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449873.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1020121122223 its reverse (3222211210201), we get a palindrome (4242332332424).

The spelling of 1020121122223 in words is "one trillion, twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-three".