101424225 has 24 divisors (see below), whose sum is σ = 191644480. Its totient is φ = 46365120.

The previous prime is 101424221. The next prime is 101424241. The reversal of 101424225 is 522424101.

It is not a de Polignac number, because 101424225 - 2² = 101424221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (101424221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96070 + ... + 97119.

Almost surely, 2^101424225 is an apocalyptic number.

101424225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101424225 is a deficient number, since it is larger than the sum of its proper divisors (90220255).

101424225 is a wasteful number, since it uses less digits than its factorization.

101424225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193209 (or 193204 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 101424225 is about 10070.9594875563. The cubic root of 101424225 is about 466.3520597784.

Adding to 101424225 its reverse (522424101), we get a palindrome (623848326).

The spelling of 101424225 in words is "one hundred one million, four hundred twenty-four thousand, two hundred twenty-five".