1222000212222 has 12 divisors (see below), whose sum is σ = 2647667126520. Its totient is φ = 407333404068.

The previous prime is 1222000212221. The next prime is 1222000212229. The reversal of 1222000212222 is 2222120002221.

1222000212222 is a `hidden beast` number, since 12 + 220 + 0 + 0 + 212 + 222 = 666.

It is a super-2 number, since 2×1222000212222² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 67888900679 = 1222000212222 / (1 + 2 + 2 + 2 + 0 + 0 + 0 + 2 + 1 + 2 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1222000212195 and 1222000212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222000212221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33944450322 + ... + 33944450357.

It is an arithmetic number, because the mean of its divisors is an integer number (220638927210).

Almost surely, 2^{1222000212222} is an apocalyptic number.

1222000212222 is an abundant number, since it is smaller than the sum of its proper divisors (1425666914298).

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

1222000212222 is a wasteful number, since it uses less digits than its factorization.

1222000212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67888900687 (or 67888900684 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1222000212222 its reverse (2222120002221), we get a palindrome (3444120214443).

The spelling of 1222000212222 in words is "one trillion, two hundred twenty-two billion, two hundred twelve thousand, two hundred twenty-two".