12120022011101 has 4 divisors (see below), whose sum is σ = 12510990463104. Its totient is φ = 11729053559100.

The previous prime is 12120022011091. The next prime is 12120022011173. The reversal of 12120022011101 is 10111022002121.

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 a de Polignac number, because none of the positive numbers 2^k-12120022011101 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 (12120022011191) 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, 195484225955 + ... + 195484226016.

It is an arithmetic number, because the mean of its divisors is an integer number (3127747615776).

Almost surely, 2^{12120022011101} is an apocalyptic number.

It is an amenable number.

12120022011101 is a deficient number, since it is larger than the sum of its proper divisors (390968452003).

12120022011101 is an equidigital number, since it uses as much as digits as its factorization.

12120022011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390968452002.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12120022011101 its reverse (10111022002121), we get a palindrome (22231044013222).

The spelling of 12120022011101 in words is "twelve trillion, one hundred twenty billion, twenty-two million, eleven thousand, one hundred one".