2222021011212 has 72 divisors (see below), whose sum is σ = 5660292718080. Its totient is φ = 734936398560.

The previous prime is 2222021011201. The next prime is 2222021011213. The reversal of 2222021011212 is 2121101202222.

It is a happy number.

2222021011212 is a `hidden beast` number, since 22 + 220 + 210 + 1 + 1 + 212 = 666.

It is a super-3 number, since 3×2222021011212³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2222021011213) 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 23 ways as a sum of consecutive naturals, for example, 52604733 + ... + 52646955.

It is an arithmetic number, because the mean of its divisors is an integer number (78615176640).

Almost surely, 2^{2222021011212} is an apocalyptic number.

It is an amenable number.

2222021011212 is an abundant number, since it is smaller than the sum of its proper divisors (3438271706868).

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

2222021011212 is a wasteful number, since it uses less digits than its factorization.

2222021011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53523 (or 53518 counting only the distinct ones).

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

Adding to 2222021011212 its reverse (2121101202222), we get a palindrome (4343122213434).

The spelling of 2222021011212 in words is "two trillion, two hundred twenty-two billion, twenty-one million, eleven thousand, two hundred twelve".