251220313434214 has 32 divisors (see below), whose sum is σ = 390406309603200. Its totient is φ = 121097855088000.

The previous prime is 251220313434203. The next prime is 251220313434229. The reversal of 251220313434214 is 412434313022152.

It is a super-2 number, since 2×251220313434214² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272954152 + ... + 273872980.

It is an arithmetic number, because the mean of its divisors is an integer number (12200197175100).

Almost surely, 2^{251220313434214} is an apocalyptic number.

251220313434214 is a deficient number, since it is larger than the sum of its proper divisors (139185996168986).

251220313434214 is a wasteful number, since it uses less digits than its factorization.

251220313434214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925888.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 251220313434214 its reverse (412434313022152), we get a palindrome (663654626456366).

The spelling of 251220313434214 in words is "two hundred fifty-one trillion, two hundred twenty billion, three hundred thirteen million, four hundred thirty-four thousand, two hundred fourteen".