2521202222 has 48 divisors (see below), whose sum is σ = 4788510720. Its totient is φ = 974468880.

The previous prime is 2521202197. The next prime is 2521202227. The reversal of 2521202222 is 2222021252.

It is a junction number, because it is equal to n+sod(n) for n = 2521202194 and 2521202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521202227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209279 + ... + 220997.

It is an arithmetic number, because the mean of its divisors is an integer number (99760640).

Almost surely, 2^2521202222 is an apocalyptic number.

2521202222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2521202222 is a deficient number, since it is larger than the sum of its proper divisors (2267308498).

2521202222 is a wasteful number, since it uses less digits than its factorization.

2521202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11877 (or 11866 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2521202222 is about 50211.5745819627. The cubic root of 2521202222 is about 1361.0347916763.

Adding to 2521202222 its reverse (2222021252), we get a palindrome (4743223474).

The spelling of 2521202222 in words is "two billion, five hundred twenty-one million, two hundred two thousand, two hundred twenty-two".