103220121 has 16 divisors (see below), whose sum is σ = 142270784. Its totient is φ = 66515904.

The previous prime is 103220119. The next prime is 103220123. The reversal of 103220121 is 121022301.

It is an interprime number because it is at equal distance from previous prime (103220119) and next prime (103220123).

It is not a de Polignac number, because 103220121 - 2¹ = 103220119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103220097 and 103220106.

It is not an unprimeable number, because it can be changed into a prime (103220123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14466 + ... + 20388.

It is an arithmetic number, because the mean of its divisors is an integer number (8891924).

Almost surely, 2^103220121 is an apocalyptic number.

It is an amenable number.

103220121 is a deficient number, since it is larger than the sum of its proper divisors (39050663).

103220121 is a wasteful number, since it uses less digits than its factorization.

103220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6120.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 103220121 is about 10159.7303605952. The cubic root of 103220121 is about 469.0885020206.

Adding to 103220121 its reverse (121022301), we get a palindrome (224242422).

The spelling of 103220121 in words is "one hundred three million, two hundred twenty thousand, one hundred twenty-one".