21441031314225 has 12 divisors (see below), whose sum is σ = 35449171772976. Its totient is φ = 11435216700880.

The previous prime is 21441031314221. The next prime is 21441031314233. The reversal of 21441031314225 is 52241313014412.

It is not a de Polignac number, because 21441031314225 - 2² = 21441031314221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21441031314221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142940208687 + ... + 142940208836.

It is an arithmetic number, because the mean of its divisors is an integer number (2954097647748).

Almost surely, 2^{21441031314225} is an apocalyptic number.

21441031314225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21441031314225 is a deficient number, since it is larger than the sum of its proper divisors (14008140458751).

21441031314225 is a wasteful number, since it uses less digits than its factorization.

21441031314225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285880417536 (or 285880417531 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 21441031314225 its reverse (52241313014412), we get a palindrome (73682344328637).

The spelling of 21441031314225 in words is "twenty-one trillion, four hundred forty-one billion, thirty-one million, three hundred fourteen thousand, two hundred twenty-five".