103221429 has 4 divisors (see below), whose sum is σ = 137628576. Its totient is φ = 68814284.

The previous prime is 103221427. The next prime is 103221431. The reversal of 103221429 is 924122301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (103221427) and next prime (103221431).

It is a cyclic number.

It is not a de Polignac number, because 103221429 - 2¹ = 103221427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103221399 and 103221408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103221421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17203569 + ... + 17203574.

It is an arithmetic number, because the mean of its divisors is an integer number (34407144).

Almost surely, 2^103221429 is an apocalyptic number.

It is an amenable number.

103221429 is a deficient number, since it is larger than the sum of its proper divisors (34407147).

103221429 is an equidigital number, since it uses as much as digits as its factorization.

103221429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34407146.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 103221429 is about 10159.7947321784. The cubic root of 103221429 is about 469.0904834339.

The spelling of 103221429 in words is "one hundred three million, two hundred twenty-one thousand, four hundred twenty-nine".