10121222221023 has 4 divisors (see below), whose sum is σ = 13494962961368. Its totient is φ = 6747481480680.

The previous prime is 10121222221009. The next prime is 10121222221043. The reversal of 10121222221023 is 32012222212101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10121222221023 - 2¹⁶ = 10121222155487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121222221003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1686870370168 + ... + 1686870370173.

It is an arithmetic number, because the mean of its divisors is an integer number (3373740740342).

Almost surely, 2^{10121222221023} is an apocalyptic number.

10121222221023 is a deficient number, since it is larger than the sum of its proper divisors (3373740740345).

10121222221023 is an equidigital number, since it uses as much as digits as its factorization.

10121222221023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373740740344.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 10121222221023 its reverse (32012222212101), we get a palindrome (42133444433124).

The spelling of 10121222221023 in words is "ten trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-one thousand, twenty-three".