121214212231 has 8 divisors (see below), whose sum is σ = 138875994144. Its totient is φ = 103638796800.

The previous prime is 121214212169. The next prime is 121214212291. The reversal of 121214212231 is 132212412121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121214212231 - 2⁹ = 121214211719 is a prime.

It is a super-2 number, since 2×121214212231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121214212291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21588610 + ... + 21594223.

It is an arithmetic number, because the mean of its divisors is an integer number (17359499268).

Almost surely, 2^121214212231 is an apocalyptic number.

121214212231 is a deficient number, since it is larger than the sum of its proper divisors (17661781913).

121214212231 is an equidigital number, since it uses as much as digits as its factorization.

121214212231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43183241.

The product of its digits is 384, while the sum is 22.

Adding to 121214212231 its reverse (132212412121), we get a palindrome (253426624352).

The spelling of 121214212231 in words is "one hundred twenty-one billion, two hundred fourteen million, two hundred twelve thousand, two hundred thirty-one".