222220002121222 has 16 divisors (see below), whose sum is σ = 380951795404800. Its totient is φ = 95236338681288.

The previous prime is 222220002121199. The next prime is 222220002121223. The reversal of 222220002121222 is 222121200022222.

It is a junction number, because it is equal to n+sod(n) for n = 222220002121193 and 222220002121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222220002121223) 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, 65373628 + ... + 68688799.

It is an arithmetic number, because the mean of its divisors is an integer number (23809487212800).

Almost surely, 2^{222220002121222} is an apocalyptic number.

222220002121222 is a deficient number, since it is larger than the sum of its proper divisors (158731793283578).

222220002121222 is a wasteful number, since it uses less digits than its factorization.

222220002121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134180835.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 222220002121222 its reverse (222121200022222), we get a palindrome (444341202143444).

The spelling of 222220002121222 in words is "two hundred twenty-two trillion, two hundred twenty billion, two million, one hundred twenty-one thousand, two hundred twenty-two".