221424325246025 has 48 divisors (see below), whose sum is σ = 299861443800000. Its totient is φ = 160855997952000.

The previous prime is 221424325246009. The next prime is 221424325246027. The reversal of 221424325246025 is 520642523424122.

It is not a de Polignac number, because 221424325246025 - 2⁴ = 221424325246009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221424325246027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1102110830 + ... + 1102311720.

It is an arithmetic number, because the mean of its divisors is an integer number (6247113412500).

Almost surely, 2^{221424325246025} is an apocalyptic number.

221424325246025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

221424325246025 is a deficient number, since it is larger than the sum of its proper divisors (78437118553975).

221424325246025 is a wasteful number, since it uses less digits than its factorization.

221424325246025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205370 (or 205365 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 44.

The spelling of 221424325246025 in words is "two hundred twenty-one trillion, four hundred twenty-four billion, three hundred twenty-five million, two hundred forty-six thousand, twenty-five".