12111221210023 has 8 divisors (see below), whose sum is σ = 13492607184000. Its totient is φ = 10794085746528.

The previous prime is 12111221209979. The next prime is 12111221210041. The reversal of 12111221210023 is 32001212211121.

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 12111221210023 - 2¹³ = 12111221201831 is a prime.

It is a super-2 number, since 2×12111221210023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111221210923) 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, 16062627223 + ... + 16062627976.

It is an arithmetic number, because the mean of its divisors is an integer number (1686575898000).

Almost surely, 2^{12111221210023} is an apocalyptic number.

12111221210023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12111221210023 is a deficient number, since it is larger than the sum of its proper divisors (1381385973977).

12111221210023 is a wasteful number, since it uses less digits than its factorization.

12111221210023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32125255241.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12111221210023 its reverse (32001212211121), we get a palindrome (44112433421144).

The spelling of 12111221210023 in words is "twelve trillion, one hundred eleven billion, two hundred twenty-one million, two hundred ten thousand, twenty-three".