2111222002012 has 12 divisors (see below), whose sum is σ = 3699138677976. Its totient is φ = 1054325236880.

The previous prime is 2111222001947. The next prime is 2111222002013. The reversal of 2111222002012 is 2102002221112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111222002013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321437338 + ... + 321443905.

It is an arithmetic number, because the mean of its divisors is an integer number (308261556498).

Almost surely, 2^{2111222002012} is an apocalyptic number.

It is an amenable number.

2111222002012 is a deficient number, since it is larger than the sum of its proper divisors (1587916675964).

2111222002012 is a wasteful number, since it uses less digits than its factorization.

2111222002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642882068 (or 642882066 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2111222002012 its reverse (2102002221112), we get a palindrome (4213224223124).

The spelling of 2111222002012 in words is "two trillion, one hundred eleven billion, two hundred twenty-two million, two thousand, twelve".