222001022121222 has 32 divisors (see below), whose sum is σ = 444264611263200. Its totient is φ = 73956585486080.

The previous prime is 222001022121209. The next prime is 222001022121233. The reversal of 222001022121222 is 222121220100222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150034522 + ... + 151506962.

It is an arithmetic number, because the mean of its divisors is an integer number (13883269101975).

Almost surely, 2^{222001022121222} is an apocalyptic number.

222001022121222 is an abundant number, since it is smaller than the sum of its proper divisors (222263589141978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222001022121222 is a wasteful number, since it uses less digits than its factorization.

222001022121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487288.

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

Adding to 222001022121222 its reverse (222121220100222), we get a palindrome (444122242221444).

The spelling of 222001022121222 in words is "two hundred twenty-two trillion, one billion, twenty-two million, one hundred twenty-one thousand, two hundred twenty-two".