2200010002121 has 4 divisors (see below), whose sum is σ = 2200731556500. Its totient is φ = 2199288447744.

The previous prime is 2200010002117. The next prime is 2200010002159. The reversal of 2200010002121 is 1212000100022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 283225131721 + 1916784870400 = 532189^2 + 1384480^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200010002121 - 2² = 2200010002117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2200010002111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360772616 + ... + 360778713.

It is an arithmetic number, because the mean of its divisors is an integer number (550182889125).

Almost surely, 2^{2200010002121} is an apocalyptic number.

It is an amenable number.

2200010002121 is a deficient number, since it is larger than the sum of its proper divisors (721554379).

2200010002121 is an equidigital number, since it uses as much as digits as its factorization.

2200010002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721554378.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2200010002121 its reverse (1212000100022), we get a palindrome (3412010102143).

The spelling of 2200010002121 in words is "two trillion, two hundred billion, ten million, two thousand, one hundred twenty-one".