121201121121211 has 8 divisors (see below), whose sum is σ = 123010329397760. Its totient is φ = 119391919795368.

The previous prime is 121201121121161. The next prime is 121201121121281. The reversal of 121201121121211 is 112121121102121.

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 121201121121211 - 2⁷ = 121201121121083 is a prime.

It is a super-2 number, since 2×121201121121211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121201121121281) 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, 41290030 + ... + 44127868.

It is an arithmetic number, because the mean of its divisors is an integer number (15376291174720).

Almost surely, 2^{121201121121211} is an apocalyptic number.

121201121121211 is a deficient number, since it is larger than the sum of its proper divisors (1809208276549).

121201121121211 is an equidigital number, since it uses as much as digits as its factorization.

121201121121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475353.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 121201121121211 its reverse (112121121102121), we get a palindrome (233322242223332).

The spelling of 121201121121211 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred eleven".