2220121122212 has 24 divisors (see below), whose sum is σ = 4440673036800. Its totient is φ = 951388168320.

The previous prime is 2220121122211. The next prime is 2220121122253. The reversal of 2220121122212 is 2122211210222.

It is not an unprimeable number, because it can be changed into a prime (2220121122211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3552212 + ... + 4130187.

It is an arithmetic number, because the mean of its divisors is an integer number (185028043200).

Almost surely, 2^{2220121122212} is an apocalyptic number.

It is an amenable number.

2220121122212 is an abundant number, since it is smaller than the sum of its proper divisors (2220551914588).

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

2220121122212 is a wasteful number, since it uses less digits than its factorization.

2220121122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7692731 (or 7692729 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2220121122212 its reverse (2122211210222), we get a palindrome (4342332332434).

The spelling of 2220121122212 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred twelve".