121220001120211 has 24 divisors (see below), whose sum is σ = 143152803941472. Its totient is φ = 100549354608000.

The previous prime is 121220001120157. The next prime is 121220001120263. The reversal of 121220001120211 is 112021100022121.

It is not a de Polignac number, because 121220001120211 - 2³⁵ = 121185641381843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121220001120271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 484171761 + ... + 484422061.

It is an arithmetic number, because the mean of its divisors is an integer number (5964700164228).

Almost surely, 2^{121220001120211} is an apocalyptic number.

121220001120211 is a deficient number, since it is larger than the sum of its proper divisors (21932802821261).

121220001120211 is an equidigital number, since it uses as much as digits as its factorization.

121220001120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322363 (or 322332 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121220001120211 its reverse (112021100022121), we get a palindrome (233241101142332).

The spelling of 121220001120211 in words is "one hundred twenty-one trillion, two hundred twenty billion, one million, one hundred twenty thousand, two hundred eleven".