101322228 has 48 divisors (see below), whose sum is σ = 273248640. Its totient is φ = 28621824.

The previous prime is 101322217. The next prime is 101322257. The reversal of 101322228 is 822223101.

It is a happy number.

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

It is a congruent number.

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, 700 + ... + 14252.

It is an arithmetic number, because the mean of its divisors is an integer number (5692680).

Almost surely, 2^101322228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101322228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136624320).

101322228 is an abundant number, since it is smaller than the sum of its proper divisors (171926412).

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

101322228 is a wasteful number, since it uses less digits than its factorization.

101322228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13656 (or 13654 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 101322228 is about 10065.8942970806. The cubic root of 101322228 is about 466.1956787790.

Adding to 101322228 its reverse (822223101), we get a palindrome (923545329).

The spelling of 101322228 in words is "one hundred one million, three hundred twenty-two thousand, two hundred twenty-eight".