121212232001 has 8 divisors (see below), whose sum is σ = 138590208960. Its totient is φ = 103849741008.

The previous prime is 121212231979. The next prime is 121212232019. The reversal of 121212232001 is 100232212121.

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

It is a cyclic number.

It is not a de Polignac number, because 121212232001 - 2²² = 121208037697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121212232051) 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, 3854711 + ... + 3886028.

It is an arithmetic number, because the mean of its divisors is an integer number (17323776120).

Almost surely, 2^121212232001 is an apocalyptic number.

It is an amenable number.

121212232001 is a deficient number, since it is larger than the sum of its proper divisors (17377976959).

121212232001 is an equidigital number, since it uses as much as digits as its factorization.

121212232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7742983.

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

Adding to 121212232001 its reverse (100232212121), we get a palindrome (221444444122).

The spelling of 121212232001 in words is "one hundred twenty-one billion, two hundred twelve million, two hundred thirty-two thousand, one".