2200021012121 has 8 divisors (see below), whose sum is σ = 2329575547464. Its totient is φ = 2070482202880.

The previous prime is 2200021012067. The next prime is 2200021012177. The reversal of 2200021012121 is 1212101200022.

It can be written as a sum of positive squares in 4 ways, for example, as 462317043721 + 1737703968400 = 679939^2 + 1318220^2 .

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 2200021012121 - 2³⁰ = 2198947270297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2200021012096 and 2200021012105.

It is not an unprimeable number, because it can be changed into a prime (2200021012181) 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, 3642890 + ... + 4203651.

It is an arithmetic number, because the mean of its divisors is an integer number (291196943433).

Almost surely, 2^{2200021012121} is an apocalyptic number.

It is an amenable number.

2200021012121 is a deficient number, since it is larger than the sum of its proper divisors (129554535343).

2200021012121 is a wasteful number, since it uses less digits than its factorization.

2200021012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7863051.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2200021012121 its reverse (1212101200022), we get a palindrome (3412122212143).

The spelling of 2200021012121 in words is "two trillion, two hundred billion, twenty-one million, twelve thousand, one hundred twenty-one".