12122221002101 has 24 divisors (see below), whose sum is σ = 15110740693440. Its totient is φ = 9661448130432.

The previous prime is 12122221002097. The next prime is 12122221002107. The reversal of 12122221002101 is 10120012222121.

It is not a de Polignac number, because 12122221002101 - 2² = 12122221002097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 12122221002101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122221002107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87596441 + ... + 87734718.

It is an arithmetic number, because the mean of its divisors is an integer number (629614195560).

Almost surely, 2^{12122221002101} is an apocalyptic number.

It is an amenable number.

12122221002101 is a deficient number, since it is larger than the sum of its proper divisors (2988519691339).

12122221002101 is a wasteful number, since it uses less digits than its factorization.

12122221002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175331273 (or 175331266 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12122221002101 its reverse (10120012222121), we get a palindrome (22242233224222).

The spelling of 12122221002101 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-one million, two thousand, one hundred one".