121221212030 has 8 divisors (see below), whose sum is σ = 218198181672. Its totient is φ = 48488484808.

The previous prime is 121221212023. The next prime is 121221212041. The reversal of 121221212030 is 30212122121.

121221212030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6061060592 + ... + 6061060611.

It is an arithmetic number, because the mean of its divisors is an integer number (27274772709).

Almost surely, 2^121221212030 is an apocalyptic number.

121221212030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121221212030 is a deficient number, since it is larger than the sum of its proper divisors (96976969642).

121221212030 is a wasteful number, since it uses less digits than its factorization.

121221212030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12122121210.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121221212030 its reverse (30212122121), we get a palindrome (151433334151).

The spelling of 121221212030 in words is "one hundred twenty-one billion, two hundred twenty-one million, two hundred twelve thousand, thirty".