2220020002121 has 4 divisors (see below), whose sum is σ = 2230541424144. Its totient is φ = 2209498580100.

The previous prime is 2220020002093. The next prime is 2220020002169. The reversal of 2220020002121 is 1212000200222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2220020002121 - 2²² = 2220015807817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220020002096 and 2220020002105.

It is not an unprimeable number, because it can be changed into a prime (2220020032121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5260710695 + ... + 5260711116.

It is an arithmetic number, because the mean of its divisors is an integer number (557635356036).

Almost surely, 2^{2220020002121} is an apocalyptic number.

It is an amenable number.

2220020002121 is a deficient number, since it is larger than the sum of its proper divisors (10521422023).

2220020002121 is a wasteful number, since it uses less digits than its factorization.

2220020002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10521422022.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2220020002121 its reverse (1212000200222), we get a palindrome (3432020202343).

The spelling of 2220020002121 in words is "two trillion, two hundred twenty billion, twenty million, two thousand, one hundred twenty-one".