1222210101222 has 32 divisors (see below), whose sum is σ = 2962933580160. Its totient is φ = 370366697160.

The previous prime is 1222210101173. The next prime is 1222210101223. The reversal of 1222210101222 is 2221010122221.

It is a happy number.

1222210101222 is a `hidden beast` number, since 1 + 222 + 210 + 10 + 1 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1222210101195 and 1222210101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222210101223) 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, 1028795788 + ... + 1028796975.

It is an arithmetic number, because the mean of its divisors is an integer number (92591674380).

Almost surely, 2^{1222210101222} is an apocalyptic number.

1222210101222 is an abundant number, since it is smaller than the sum of its proper divisors (1740723478938).

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

1222210101222 is a wasteful number, since it uses less digits than its factorization.

1222210101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057592785 (or 2057592779 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1222210101222 its reverse (2221010122221), we get a palindrome (3443220223443).

The spelling of 1222210101222 in words is "one trillion, two hundred twenty-two billion, two hundred ten million, one hundred one thousand, two hundred twenty-two".