12021022111101 has 4 divisors (see below), whose sum is σ = 16028029481472. Its totient is φ = 8014014740732.

The previous prime is 12021022111057. The next prime is 12021022111117. The reversal of 12021022111101 is 10111122012021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12021022111101 - 2¹⁰ = 12021022110077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021022111201) 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, 2003503685181 + ... + 2003503685186.

It is an arithmetic number, because the mean of its divisors is an integer number (4007007370368).

Almost surely, 2^{12021022111101} is an apocalyptic number.

It is an amenable number.

12021022111101 is a deficient number, since it is larger than the sum of its proper divisors (4007007370371).

12021022111101 is an equidigital number, since it uses as much as digits as its factorization.

12021022111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007007370370.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12021022111101 its reverse (10111122012021), we get a palindrome (22132144123122).

The spelling of 12021022111101 in words is "twelve trillion, twenty-one billion, twenty-two million, one hundred eleven thousand, one hundred one".