2121224421222 has 12 divisors (see below), whose sum is σ = 4595986246020. Its totient is φ = 707074807068.

The previous prime is 2121224421221. The next prime is 2121224421241. The reversal of 2121224421222 is 2221244221212.

2121224421222 is a `hidden beast` number, since 2 + 1 + 2 + 12 + 2 + 4 + 421 + 222 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121224421221) 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, 58922900572 + ... + 58922900607.

It is an arithmetic number, because the mean of its divisors is an integer number (382998853835).

Almost surely, 2^{2121224421222} is an apocalyptic number.

2121224421222 is an abundant number, since it is smaller than the sum of its proper divisors (2474761824798).

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

2121224421222 is a wasteful number, since it uses less digits than its factorization.

2121224421222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117845801187 (or 117845801184 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

Adding to 2121224421222 its reverse (2221244221212), we get a palindrome (4342468642434).

The spelling of 2121224421222 in words is "two trillion, one hundred twenty-one billion, two hundred twenty-four million, four hundred twenty-one thousand, two hundred twenty-two".