251200452222 has 48 divisors (see below), whose sum is σ = 558526615920. Its totient is φ = 81562530816.

The previous prime is 251200452157. The next prime is 251200452277. The reversal of 251200452222 is 222254002152.

It is a happy number.

251200452222 is a `hidden beast` number, since 2 + 5 + 1 + 200 + 452 + 2 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 814563 + ... + 1079774.

It is an arithmetic number, because the mean of its divisors is an integer number (11635971165).

Almost surely, 2^251200452222 is an apocalyptic number.

251200452222 is an abundant number, since it is smaller than the sum of its proper divisors (307326163698).

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

251200452222 is a wasteful number, since it uses less digits than its factorization.

251200452222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894537 (or 1894534 counting only the distinct ones).

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

Adding to 251200452222 its reverse (222254002152), we get a palindrome (473454454374).

The spelling of 251200452222 in words is "two hundred fifty-one billion, two hundred million, four hundred fifty-two thousand, two hundred twenty-two".