1211000201121 has 8 divisors (see below), whose sum is σ = 1614945781504. Its totient is φ = 807194044080.

The previous prime is 1211000201087. The next prime is 1211000201141. The reversal of 1211000201121 is 1211020001121.

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

It is not a de Polignac number, because 1211000201121 - 2⁶ = 1211000201057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211000201097 and 1211000201106.

It is not an unprimeable number, because it can be changed into a prime (1211000201141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34835566 + ... + 34870311.

It is an arithmetic number, because the mean of its divisors is an integer number (201868222688).

Almost surely, 2^{1211000201121} is an apocalyptic number.

It is an amenable number.

1211000201121 is a deficient number, since it is larger than the sum of its proper divisors (403945580383).

1211000201121 is an equidigital number, since it uses as much as digits as its factorization.

1211000201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69711671.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1211000201121 its reverse (1211020001121), we get a palindrome (2422020202242).

The spelling of 1211000201121 in words is "one trillion, two hundred eleven billion, two hundred one thousand, one hundred twenty-one".