11212210001023 has 4 divisors (see below), whose sum is σ = 11212642413288. Its totient is φ = 11211777588760.

The previous prime is 11212210001021. The next prime is 11212210001029. The reversal of 11212210001023 is 32010001221211.

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

It is a cyclic number.

It is not a de Polignac number, because 11212210001023 - 2¹ = 11212210001021 is a prime.

It is a super-2 number, since 2×11212210001023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11212210000988 and 11212210001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212210001021) 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, 216167236 + ... + 216219097.

It is an arithmetic number, because the mean of its divisors is an integer number (2803160603322).

Almost surely, 2^{11212210001023} is an apocalyptic number.

11212210001023 is a deficient number, since it is larger than the sum of its proper divisors (432412265).

11212210001023 is an equidigital number, since it uses as much as digits as its factorization.

11212210001023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432412264.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11212210001023 its reverse (32010001221211), we get a palindrome (43222211222234).

The spelling of 11212210001023 in words is "eleven trillion, two hundred twelve billion, two hundred ten million, one thousand, twenty-three".