11021221210023 has 10 divisors (see below), whose sum is σ = 16463799585464. Its totient is φ = 7347480806628.

The previous prime is 11021221209991. The next prime is 11021221210031. The reversal of 11021221210023 is 32001212212011.

It is not a de Polignac number, because 11021221210023 - 2⁵ = 11021221209991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021221209978 and 11021221210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021221210823) 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 9 ways as a sum of consecutive naturals, for example, 68032229611 + ... + 68032229772.

Almost surely, 2^{11021221210023} is an apocalyptic number.

11021221210023 is a deficient number, since it is larger than the sum of its proper divisors (5442578375441).

11021221210023 is an equidigital number, since it uses as much as digits as its factorization.

11021221210023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136064459395 (or 136064459386 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11021221210023 its reverse (32001212212011), we get a palindrome (43022433422034).

The spelling of 11021221210023 in words is "eleven trillion, twenty-one billion, two hundred twenty-one million, two hundred ten thousand, twenty-three".