121222122001 has 8 divisors (see below), whose sum is σ = 124764249024. Its totient is φ = 117730961040.

The previous prime is 121222121981. The next prime is 121222122019. The reversal of 121222122001 is 100221222121.

It is a happy number.

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 121222122001 - 2⁷ = 121222121873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121222122601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12736690 + ... + 12746203.

It is an arithmetic number, because the mean of its divisors is an integer number (15595531128).

Almost surely, 2^121222122001 is an apocalyptic number.

It is an amenable number.

121222122001 is a deficient number, since it is larger than the sum of its proper divisors (3542127023).

121222122001 is an equidigital number, since it uses as much as digits as its factorization.

121222122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25483031.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121222122001 its reverse (100221222121), we get a palindrome (221443344122).

The spelling of 121222122001 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-two thousand, one".