1222121120022 has 40 divisors (see below), whose sum is σ = 2987407186632. Its totient is φ = 370339732800.

The previous prime is 1222121119993. The next prime is 1222121120069. The reversal of 1222121120022 is 2200211212221.

It is a happy number.

1222121120022 is a `hidden beast` number, since 12 + 221 + 211 + 200 + 22 = 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 = 1222121119977 and 1222121120004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 342905379 + ... + 342908942.

Almost surely, 2^{1222121120022} is an apocalyptic number.

1222121120022 is an abundant number, since it is smaller than the sum of its proper divisors (1765286066610).

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

1222121120022 is a wasteful number, since it uses less digits than its factorization.

1222121120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685814346 (or 685814337 counting only the distinct ones).

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

Adding to 1222121120022 its reverse (2200211212221), we get a palindrome (3422332332243).

The spelling of 1222121120022 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, twenty-two".