12212213101 has 36 divisors (see below), whose sum is σ = 14178776220. Its totient is φ = 10508608000.

The previous prime is 12212213099. The next prime is 12212213173. The reversal of 12212213101 is 10131221221.

It can be written as a sum of positive squares in 2 ways, for example, as 9389416201 + 2822796900 = 96899^2 + 53130^2 .

It is not a de Polignac number, because 12212213101 - 2¹ = 12212213099 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 (12212211101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6463965 + ... + 6465853.

It is an arithmetic number, because the mean of its divisors is an integer number (393854895).

Almost surely, 2^12212213101 is an apocalyptic number.

12212213101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12212213101 is a deficient number, since it is larger than the sum of its proper divisors (1966563119).

12212213101 is a wasteful number, since it uses less digits than its factorization.

12212213101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12212213101 its reverse (10131221221), we get a palindrome (22343434322).

The spelling of 12212213101 in words is "twelve billion, two hundred twelve million, two hundred thirteen thousand, one hundred one".