220221212021023 has 2 divisors, whose sum is σ = 220221212021024. Its totient is φ = 220221212021022.

The previous prime is 220221212021009. The next prime is 220221212021051. The reversal of 220221212021023 is 320120212122022.

It is a happy number.

220221212021023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220221212021023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220221212020985 and 220221212021003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220221212021423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110110606010511 + 110110606010512.

It is an arithmetic number, because the mean of its divisors is an integer number (110110606010512).

Almost surely, 2^{220221212021023} is an apocalyptic number.

220221212021023 is a deficient number, since it is larger than the sum of its proper divisors (1).

220221212021023 is an equidigital number, since it uses as much as digits as its factorization.

220221212021023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 220221212021023 its reverse (320120212122022), we get a palindrome (540341424143045).

The spelling of 220221212021023 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred twelve million, twenty-one thousand, twenty-three".