22145230514225 has 24 divisors (see below), whose sum is σ = 33797028726720. Its totient is φ = 14017200851520.

The previous prime is 22145230514219. The next prime is 22145230514237. The reversal of 22145230514225 is 52241503254122.

It is not a de Polignac number, because 22145230514225 - 2¹⁰ = 22145230513201 is a prime.

It is a super-2 number, since 2×22145230514225² (a number of 27 digits) contains 22 as substring.

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, 4867081355 + ... + 4867085904.

It is an arithmetic number, because the mean of its divisors is an integer number (1408209530280).

Almost surely, 2^{22145230514225} is an apocalyptic number.

22145230514225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22145230514225 is a deficient number, since it is larger than the sum of its proper divisors (11651798212495).

22145230514225 is a wasteful number, since it uses less digits than its factorization.

22145230514225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9734167289 (or 9734167284 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 22145230514225 its reverse (52241503254122), we get a palindrome (74386733768347).

The spelling of 22145230514225 in words is "twenty-two trillion, one hundred forty-five billion, two hundred thirty million, five hundred fourteen thousand, two hundred twenty-five".