222222022012121 has 16 divisors (see below), whose sum is σ = 224560548487680. Its totient is φ = 219894692509440.

The previous prime is 222222022012117. The next prime is 222222022012171. The reversal of 222222022012121 is 121210220222222.

222222022012121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 222222022012121 - 2² = 222222022012117 is a prime.

It is a super-3 number, since 3×222222022012121³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222222022012171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72861476 + ... + 75850106.

It is an arithmetic number, because the mean of its divisors is an integer number (14035034280480).

Almost surely, 2^{222222022012121} is an apocalyptic number.

It is an amenable number.

222222022012121 is a deficient number, since it is larger than the sum of its proper divisors (2338526475559).

222222022012121 is a wasteful number, since it uses less digits than its factorization.

222222022012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990504.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 222222022012121 its reverse (121210220222222), we get a palindrome (343432242234343).

The spelling of 222222022012121 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, twenty-two million, twelve thousand, one hundred twenty-one".