2000000022121 has 8 divisors (see below), whose sum is σ = 2134102404320. Its totient is φ = 1868781562272.

The previous prime is 2000000022079. The next prime is 2000000022127. The reversal of 2000000022121 is 1212200000002.

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 2000000022121 - 2²⁵ = 1999966467689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000000022098 and 2000000022107.

It is not an unprimeable number, because it can be changed into a prime (2000000022127) 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, 720979155 + ... + 720981928.

It is an arithmetic number, because the mean of its divisors is an integer number (266762800540).

Almost surely, 2^{2000000022121} is an apocalyptic number.

It is an amenable number.

2000000022121 is a deficient number, since it is larger than the sum of its proper divisors (134102382199).

2000000022121 is a wasteful number, since it uses less digits than its factorization.

2000000022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441961175.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2000000022121 its reverse (1212200000002), we get a palindrome (3212200022123).

The spelling of 2000000022121 in words is "two trillion, twenty-two thousand, one hundred twenty-one".