2212505550 has 192 divisors, whose sum is σ = 6344593920. Its totient is φ = 566496000.

The previous prime is 2212505543. The next prime is 2212505551. The reversal of 2212505550 is 555052122.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212505551) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3929569 + ... + 3930131.

It is an arithmetic number, because the mean of its divisors is an integer number (33044760).

Almost surely, 2^2212505550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212505550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3172296960).

2212505550 is an abundant number, since it is smaller than the sum of its proper divisors (4132088370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2212505550 is a wasteful number, since it uses less digits than its factorization.

2212505550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 2212505550 is about 47037.2783013643. The cubic root of 2212505550 is about 1303.0511272237.

Adding to 2212505550 its reverse (555052122), we get a palindrome (2767557672).

The spelling of 2212505550 in words is "two billion, two hundred twelve million, five hundred five thousand, five hundred fifty".