12122201101 has 8 divisors (see below), whose sum is σ = 12876284664. Its totient is φ = 11372674560.

The previous prime is 12122201099. The next prime is 12122201107. The reversal of 12122201101 is 10110222121.

It can be written as a sum of positive squares in 4 ways, for example, as 2015920201 + 10106280900 = 44899^2 + 100530^2 .

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 12122201101 - 2¹ = 12122201099 is a prime.

It is a super-2 number, since 2×12122201101² (a number of 21 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 (12122201107) 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, 1133770 + ... + 1144411.

It is an arithmetic number, because the mean of its divisors is an integer number (1609535583).

Almost surely, 2^12122201101 is an apocalyptic number.

It is an amenable number.

12122201101 is a deficient number, since it is larger than the sum of its proper divisors (754083563).

12122201101 is a wasteful number, since it uses less digits than its factorization.

12122201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278511.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12122201101 its reverse (10110222121), we get a palindrome (22232423222).

The spelling of 12122201101 in words is "twelve billion, one hundred twenty-two million, two hundred one thousand, one hundred one".