1222222121222 has 8 divisors (see below), whose sum is σ = 1833496338000. Its totient is φ = 611056675224.

The previous prime is 1222222121203. The next prime is 1222222121227. The reversal of 1222222121222 is 2221212222221.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222222121227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27164597 + ... + 27209552.

It is an arithmetic number, because the mean of its divisors is an integer number (229187042250).

Almost surely, 2^{1222222121222} is an apocalyptic number.

1222222121222 is a deficient number, since it is larger than the sum of its proper divisors (611274216778).

1222222121222 is a wasteful number, since it uses less digits than its factorization.

1222222121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54385390.

The product of its digits is 1024, while the sum is 23.

Adding to 1222222121222 its reverse (2221212222221), we get a palindrome (3443434343443).

The spelling of 1222222121222 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-two".