12120221110101 has 32 divisors (see below), whose sum is σ = 18008190533760. Its totient is φ = 7199532958464.

The previous prime is 12120221110091. The next prime is 12120221110111. The reversal of 12120221110101 is 10101112202121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12120221110091) and next prime (12120221110111).

It is not a de Polignac number, because 12120221110101 - 2¹⁰ = 12120221109077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120221110111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2967090 + ... + 5748396.

It is an arithmetic number, because the mean of its divisors is an integer number (562755954180).

Almost surely, 2^{12120221110101} is an apocalyptic number.

It is an amenable number.

12120221110101 is a deficient number, since it is larger than the sum of its proper divisors (5887969423659).

12120221110101 is a wasteful number, since it uses less digits than its factorization.

12120221110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785205.

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

Adding to 12120221110101 its reverse (10101112202121), we get a palindrome (22221333312222).

The spelling of 12120221110101 in words is "twelve trillion, one hundred twenty billion, two hundred twenty-one million, one hundred ten thousand, one hundred one".