25421140304212 has 12 divisors (see below), whose sum is σ = 44651154189376. Its totient is φ = 12663667678680.

The previous prime is 25421140304143. The next prime is 25421140304213. The reversal of 25421140304212 is 21240304112452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25421140304213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11725617138 + ... + 11725619305.

Almost surely, 2^{25421140304212} is an apocalyptic number.

It is an amenable number.

25421140304212 is a deficient number, since it is larger than the sum of its proper divisors (19230013885164).

25421140304212 is a wasteful number, since it uses less digits than its factorization.

25421140304212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23451236718 (or 23451236716 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 25421140304212 its reverse (21240304112452), we get a palindrome (46661444416664).

The spelling of 25421140304212 in words is "twenty-five trillion, four hundred twenty-one billion, one hundred forty million, three hundred four thousand, two hundred twelve".