101003220 has 48 divisors (see below), whose sum is σ = 314233920. Its totient is φ = 26934048.

The previous prime is 101003209. The next prime is 101003233. The reversal of 101003220 is 22300101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92982 + ... + 94061.

It is an arithmetic number, because the mean of its divisors is an integer number (6546540).

Almost surely, 2^101003220 is an apocalyptic number.

101003220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101003220 is an abundant number, since it is smaller than the sum of its proper divisors (213230700).

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

101003220 is a wasteful number, since it uses less digits than its factorization.

101003220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187061 (or 187053 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 101003220 is about 10050.0358208317. The cubic root of 101003220 is about 465.7058997610.

Adding to 101003220 its reverse (22300101), we get a palindrome (123303321).

The spelling of 101003220 in words is "one hundred one million, three thousand, two hundred twenty".