222202220021121 has 16 divisors (see below), whose sum is σ = 296376802344000. Its totient is φ = 148081233991680.

The previous prime is 222202220021113. The next prime is 222202220021143. The reversal of 222202220021121 is 121120022202222.

It is not a de Polignac number, because 222202220021121 - 2³ = 222202220021113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222202220021521) 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, 104532130 + ... + 106636628.

It is an arithmetic number, because the mean of its divisors is an integer number (18523550146500).

Almost surely, 2^{222202220021121} is an apocalyptic number.

It is an amenable number.

222202220021121 is a deficient number, since it is larger than the sum of its proper divisors (74174582322879).

222202220021121 is a wasteful number, since it uses less digits than its factorization.

222202220021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117216.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222202220021121 its reverse (121120022202222), we get a palindrome (343322242223343).

The spelling of 222202220021121 in words is "two hundred twenty-two trillion, two hundred two billion, two hundred twenty million, twenty-one thousand, one hundred twenty-one".