2211222222012 has 48 divisors (see below), whose sum is σ = 5440823015040. Its totient is φ = 697027015872.

The previous prime is 2211222221983. The next prime is 2211222222017. The reversal of 2211222222012 is 2102222221122.

2211222222012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2211222222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211222222017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8578878 + ... + 8832869.

It is an arithmetic number, because the mean of its divisors is an integer number (113350479480).

Almost surely, 2^{2211222222012} is an apocalyptic number.

It is an amenable number.

2211222222012 is an abundant number, since it is smaller than the sum of its proper divisors (3229600793028).

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

2211222222012 is a wasteful number, since it uses less digits than its factorization.

2211222222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17412330 (or 17412328 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2211222222012 its reverse (2102222221122), we get a palindrome (4313444443134).

The spelling of 2211222222012 in words is "two trillion, two hundred eleven billion, two hundred twenty-two million, two hundred twenty-two thousand, twelve".