101215225 has 12 divisors (see below), whose sum is σ = 127382224. Its totient is φ = 79762320.

The previous prime is 101215211. The next prime is 101215237. The reversal of 101215225 is 522512101.

It is not a de Polignac number, because 101215225 - 2²¹ = 99118073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28539 + ... + 31888.

Almost surely, 2^101215225 is an apocalyptic number.

It is an amenable number.

101215225 is a deficient number, since it is larger than the sum of its proper divisors (26166999).

101215225 is an equidigital number, since it uses as much as digits as its factorization.

101215225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60504 (or 60499 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 101215225 is about 10060.5777667090. The cubic root of 101215225 is about 466.0315097778.

Adding to 101215225 its reverse (522512101), we get a palindrome (623727326).

The spelling of 101215225 in words is "one hundred one million, two hundred fifteen thousand, two hundred twenty-five".