2222022121 has 8 divisors (see below), whose sum is σ = 2425737600. Its totient is φ = 2018592240.

The previous prime is 2222022109. The next prime is 2222022139. The reversal of 2222022121 is 1212202222.

2222022121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2222022121 - 2¹⁹ = 2221497833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2222022095 and 2222022104.

It is not an unprimeable number, because it can be changed into a prime (2222022181) 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, 54961 + ... + 86398.

It is an arithmetic number, because the mean of its divisors is an integer number (303217200).

Almost surely, 2^2222022121 is an apocalyptic number.

It is an amenable number.

2222022121 is a deficient number, since it is larger than the sum of its proper divisors (203715479).

2222022121 is a wasteful number, since it uses less digits than its factorization.

2222022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142799.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2222022121 is about 47138.3296373556. The cubic root of 2222022121 is about 1304.9167107239.

Adding to 2222022121 its reverse (1212202222), we get a palindrome (3434224343).

The spelling of 2222022121 in words is "two billion, two hundred twenty-two million, twenty-two thousand, one hundred twenty-one".