12210055541 has 8 divisors (see below), whose sum is σ = 12303752664. Its totient is φ = 12116424960.

The previous prime is 12210055499. The next prime is 12210055547. The reversal of 12210055541 is 14555001221.

It can be written as a sum of positive squares in 4 ways, for example, as 3719170225 + 8490885316 = 60985^2 + 92146^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12210055541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12210055541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210055547) 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, 389471 + ... + 419651.

It is an arithmetic number, because the mean of its divisors is an integer number (1537969083).

Almost surely, 2^12210055541 is an apocalyptic number.

It is an amenable number.

12210055541 is a deficient number, since it is larger than the sum of its proper divisors (93697123).

12210055541 is a wasteful number, since it uses less digits than its factorization.

12210055541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33271.

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 12210055541 its reverse (14555001221), we get a palindrome (26765056762).

The spelling of 12210055541 in words is "twelve billion, two hundred ten million, fifty-five thousand, five hundred forty-one".