251350223200212 has 48 divisors (see below), whose sum is σ = 587901266568000. Its totient is φ = 83581010050560.

The previous prime is 251350223200169. The next prime is 251350223200213. The reversal of 251350223200212 is 212002322053152.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 251350223200212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251350223200213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16788339 + ... + 28009797.

It is an arithmetic number, because the mean of its divisors is an integer number (12247943053500).

Almost surely, 2^{251350223200212} is an apocalyptic number.

It is an amenable number.

251350223200212 is an abundant number, since it is smaller than the sum of its proper divisors (336551043367788).

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

251350223200212 is a wasteful number, since it uses less digits than its factorization.

251350223200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11225976 (or 11225974 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 251350223200212 its reverse (212002322053152), we get a palindrome (463352545253364).

The spelling of 251350223200212 in words is "two hundred fifty-one trillion, three hundred fifty billion, two hundred twenty-three million, two hundred thousand, two hundred twelve".