2121010122201 has 16 divisors (see below), whose sum is σ = 2876099066688. Its totient is φ = 1389991780800.

The previous prime is 2121010122197. The next prime is 2121010122221. The reversal of 2121010122201 is 1022210101212.

It is not a de Polignac number, because 2121010122201 - 2² = 2121010122197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121010122221) 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 15 ways as a sum of consecutive naturals, for example, 3171310 + ... + 3781431.

It is an arithmetic number, because the mean of its divisors is an integer number (179756191668).

Almost surely, 2^{2121010122201} is an apocalyptic number.

It is an amenable number.

2121010122201 is a deficient number, since it is larger than the sum of its proper divisors (755088944487).

2121010122201 is a wasteful number, since it uses less digits than its factorization.

2121010122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6954472.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2121010122201 its reverse (1022210101212), we get a palindrome (3143220223413).

The spelling of 2121010122201 in words is "two trillion, one hundred twenty-one billion, ten million, one hundred twenty-two thousand, two hundred one".