2220211021212 has 36 divisors (see below), whose sum is σ = 5763881168136. Its totient is φ = 720068438880.

The previous prime is 2220211021211. The next prime is 2220211021271. The reversal of 2220211021212 is 2121201120222.

It is a happy number.

2220211021212 is a `hidden beast` number, since 2 + 220 + 211 + 0 + 21 + 212 = 666.

2220211021212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2220211021212² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220211021211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 833411214 + ... + 833413877.

It is an arithmetic number, because the mean of its divisors is an integer number (160107810226).

Almost surely, 2^{2220211021212} is an apocalyptic number.

It is an amenable number.

2220211021212 is an abundant number, since it is smaller than the sum of its proper divisors (3543670146924).

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

2220211021212 is a wasteful number, since it uses less digits than its factorization.

2220211021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666825138 (or 1666825133 counting only the distinct ones).

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

Adding to 2220211021212 its reverse (2121201120222), we get a palindrome (4341412141434).

The spelling of 2220211021212 in words is "two trillion, two hundred twenty billion, two hundred eleven million, twenty-one thousand, two hundred twelve".