103402221 has 8 divisors (see below), whose sum is σ = 148475040. Its totient is φ = 63632112.

The previous prime is 103402219. The next prime is 103402249. The reversal of 103402221 is 122204301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103402221 - 2¹ = 103402219 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 103402221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103402121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1325631 + ... + 1325708.

It is an arithmetic number, because the mean of its divisors is an integer number (18559380).

Almost surely, 2^103402221 is an apocalyptic number.

It is an amenable number.

103402221 is a deficient number, since it is larger than the sum of its proper divisors (45072819).

103402221 is a wasteful number, since it uses less digits than its factorization.

103402221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651355.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 103402221 is about 10168.6882634881. The cubic root of 103402221 is about 469.3641938513.

Adding to 103402221 its reverse (122204301), we get a palindrome (225606522).

It can be divided in two parts, 10340 and 2221, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 103402221 in words is "one hundred three million, four hundred two thousand, two hundred twenty-one".