2251242202 has 16 divisors (see below), whose sum is σ = 3690414432. Its totient is φ = 1021468720.

The previous prime is 2251242199. The next prime is 2251242209. The reversal of 2251242202 is 2022421522.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2251242209) 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 7 ways as a sum of consecutive naturals, for example, 78493 + ... + 103264.

It is an arithmetic number, because the mean of its divisors is an integer number (230650902).

Almost surely, 2^2251242202 is an apocalyptic number.

2251242202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2251242202 is a deficient number, since it is larger than the sum of its proper divisors (1439172230).

2251242202 is a wasteful number, since it uses less digits than its factorization.

2251242202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182333.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2251242202 is about 47447.2570545443. The cubic root of 2251242202 is about 1310.6118001620.

Adding to 2251242202 its reverse (2022421522), we get a palindrome (4273663724).

The spelling of 2251242202 in words is "two billion, two hundred fifty-one million, two hundred forty-two thousand, two hundred two".