1011221112023 has 8 divisors (see below), whose sum is σ = 1034133968640. Its totient is φ = 988366485240.

The previous prime is 1011221111987. The next prime is 1011221112049. The reversal of 1011221112023 is 3202111221101.

It is a happy number.

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 1011221112023 - 2⁶ = 1011221111959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011221111992 and 1011221112010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011721112023) 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, 14522333 + ... + 14591798.

It is an arithmetic number, because the mean of its divisors is an integer number (129266746080).

Almost surely, 2^{1011221112023} is an apocalyptic number.

1011221112023 is a deficient number, since it is larger than the sum of its proper divisors (22912856617).

1011221112023 is an equidigital number, since it uses as much as digits as its factorization.

1011221112023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29114917.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1011221112023 its reverse (3202111221101), we get a palindrome (4213332333124).

The spelling of 1011221112023 in words is "one trillion, eleven billion, two hundred twenty-one million, one hundred twelve thousand, twenty-three".