221011212023 has 8 divisors (see below), whose sum is σ = 252590808960. Its totient is φ = 189433256760.

The previous prime is 221011211987. The next prime is 221011212043. The reversal of 221011212023 is 320212110122.

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 221011212023 - 2¹⁰ = 221011210999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221011211992 and 221011212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221011212043) 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, 106973 + ... + 673398.

It is an arithmetic number, because the mean of its divisors is an integer number (31573851120).

Almost surely, 2^221011212023 is an apocalyptic number.

221011212023 is a deficient number, since it is larger than the sum of its proper divisors (31579596937).

221011212023 is an equidigital number, since it uses as much as digits as its factorization.

221011212023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820837.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 221011212023 its reverse (320212110122), we get a palindrome (541223322145).

The spelling of 221011212023 in words is "two hundred twenty-one billion, eleven million, two hundred twelve thousand, twenty-three".