121232212103 has 4 divisors (see below), whose sum is σ = 125412633240. Its totient is φ = 117051790968.

The previous prime is 121232212099. The next prime is 121232212133. The reversal of 121232212103 is 301212232121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121232212103 - 2² = 121232212099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121232212133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2090210525 + ... + 2090210582.

It is an arithmetic number, because the mean of its divisors is an integer number (31353158310).

Almost surely, 2^121232212103 is an apocalyptic number.

121232212103 is a deficient number, since it is larger than the sum of its proper divisors (4180421137).

121232212103 is an equidigital number, since it uses as much as digits as its factorization.

121232212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180421136.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121232212103 its reverse (301212232121), we get a palindrome (422444444224).

The spelling of 121232212103 in words is "one hundred twenty-one billion, two hundred thirty-two million, two hundred twelve thousand, one hundred three".