101225730 has 32 divisors (see below), whose sum is σ = 255729600. Its totient is φ = 25572672.

The previous prime is 101225681. The next prime is 101225743. The reversal of 101225730 is 37522101.

It is a junction number, because it is equal to n+sod(n) for n = 101225697 and 101225706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88225 + ... + 89364.

It is an arithmetic number, because the mean of its divisors is an integer number (7991550).

Almost surely, 2^101225730 is an apocalyptic number.

101225730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101225730 is an abundant number, since it is smaller than the sum of its proper divisors (154503870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101225730 is a wasteful number, since it uses less digits than its factorization.

101225730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177618.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 101225730 is about 10061.0998404747. The cubic root of 101225730 is about 466.0476321601.

Adding to 101225730 its reverse (37522101), we get a palindrome (138747831).

The spelling of 101225730 in words is "one hundred one million, two hundred twenty-five thousand, seven hundred thirty".