103130220211221 has 16 divisors (see below), whose sum is σ = 157965064667264. Its totient is φ = 58626209562624.

The previous prime is 103130220211153. The next prime is 103130220211223. The reversal of 103130220211221 is 122112022031301.

It is not a de Polignac number, because 103130220211221 - 2²⁵ = 103130186656789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103130220211223) 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, 12722697676 + ... + 12722705781.

It is an arithmetic number, because the mean of its divisors is an integer number (9872816541704).

Almost surely, 2^{103130220211221} is an apocalyptic number.

It is an amenable number.

103130220211221 is a deficient number, since it is larger than the sum of its proper divisors (54834844456043).

103130220211221 is a wasteful number, since it uses less digits than its factorization.

103130220211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25445403660.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 103130220211221 its reverse (122112022031301), we get a palindrome (225242242242522).

The spelling of 103130220211221 in words is "one hundred three trillion, one hundred thirty billion, two hundred twenty million, two hundred eleven thousand, two hundred twenty-one".