2455212222 has 56 divisors (see below), whose sum is σ = 5544526680. Its totient is φ = 815022000.

The previous prime is 2455212217. The next prime is 2455212223. The reversal of 2455212222 is 2222125542.

It is a happy number.

2455212222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (2455212223) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 362604 + ... + 369312.

It is an arithmetic number, because the mean of its divisors is an integer number (99009405).

Almost surely, 2^2455212222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2455212222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2772263340).

2455212222 is an abundant number, since it is smaller than the sum of its proper divisors (3089314458).

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

2455212222 is an equidigital number, since it uses as much as digits as its factorization.

2455212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6980 (or 6965 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 2455212222 is about 49550.0981028292. The cubic root of 2455212222 is about 1349.0550720886.

Adding to 2455212222 its reverse (2222125542), we get a palindrome (4677337764).

The spelling of 2455212222 in words is "two billion, four hundred fifty-five million, two hundred twelve thousand, two hundred twenty-two".