103606221 has 32 divisors (see below), whose sum is σ = 152570880. Its totient is φ = 62294400.

The previous prime is 103606207. The next prime is 103606273. The reversal of 103606221 is 122606301.

It is a happy number.

It is not a de Polignac number, because 103606221 - 2¹³ = 103598029 is a prime.

It is a super-3 number, since 3×103606221³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103606621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99976 + ... + 101006.

It is an arithmetic number, because the mean of its divisors is an integer number (4767840).

Almost surely, 2^103606221 is an apocalyptic number.

It is an amenable number.

103606221 is a deficient number, since it is larger than the sum of its proper divisors (48964659).

103606221 is a wasteful number, since it uses less digits than its factorization.

103606221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 103606221 is about 10178.7141132856. The cubic root of 103606221 is about 469.6726572340.

The spelling of 103606221 in words is "one hundred three million, six hundred six thousand, two hundred twenty-one".