101231226 has 24 divisors (see below), whose sum is σ = 232237044. Its totient is φ = 31758720.

The previous prime is 101231191. The next prime is 101231227. The reversal of 101231226 is 622132101.

It can be written as a sum of positive squares in 2 ways, for example, as 76580001 + 24651225 = 8751^2 + 4965^2 .

It is a super-2 number, since 2×101231226² = 20495522234926152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 101231199 and 101231208.

It is not an unprimeable number, because it can be changed into a prime (101231227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165105 + ... + 165716.

Almost surely, 2^101231226 is an apocalyptic number.

101231226 is an abundant number, since it is smaller than the sum of its proper divisors (131005818).

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

101231226 is a wasteful number, since it uses less digits than its factorization.

101231226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330846 (or 330843 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 101231226 is about 10061.3729679403. The cubic root of 101231226 is about 466.0560666146.

Adding to 101231226 its reverse (622132101), we get a palindrome (723363327).

The spelling of 101231226 in words is "one hundred one million, two hundred thirty-one thousand, two hundred twenty-six".