121231224214 has 4 divisors (see below), whose sum is σ = 181846836324. Its totient is φ = 60615612106.

The previous prime is 121231224187. The next prime is 121231224221. The reversal of 121231224214 is 412422132121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 412422132121 = 213253 ⋅1933957.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30307806052 + ... + 30307806055.

It is an arithmetic number, because the mean of its divisors is an integer number (45461709081).

Almost surely, 2^121231224214 is an apocalyptic number.

121231224214 is a deficient number, since it is larger than the sum of its proper divisors (60615612110).

121231224214 is an equidigital number, since it uses as much as digits as its factorization.

121231224214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60615612109.

The product of its digits is 1536, while the sum is 25.

Adding to 121231224214 its reverse (412422132121), we get a palindrome (533653356335).

The spelling of 121231224214 in words is "one hundred twenty-one billion, two hundred thirty-one million, two hundred twenty-four thousand, two hundred fourteen".