222001211221222 has 8 divisors (see below), whose sum is σ = 333001880381016. Its totient is φ = 111000584427552.

The previous prime is 222001211221171. The next prime is 222001211221249. The reversal of 222001211221222 is 222122112100222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 222001211221193 and 222001211221202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13171713 + ... + 24849475.

It is an arithmetic number, because the mean of its divisors is an integer number (41625235047627).

Almost surely, 2^{222001211221222} is an apocalyptic number.

222001211221222 is a deficient number, since it is larger than the sum of its proper divisors (111000669159794).

222001211221222 is a wasteful number, since it uses less digits than its factorization.

222001211221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21183062.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222001211221222 its reverse (222122112100222), we get a palindrome (444123323321444).

The spelling of 222001211221222 in words is "two hundred twenty-two trillion, one billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty-two".