2012111211222 has 48 divisors (see below), whose sum is σ = 4982692210080. Its totient is φ = 574851810816.

The previous prime is 2012111211199. The next prime is 2012111211251. The reversal of 2012111211222 is 2221121112102.

2012111211222 is a `hidden beast` number, since 20 + 1 + 211 + 1 + 211 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2012111211195 and 2012111211204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1474854 + ... + 2489862.

It is an arithmetic number, because the mean of its divisors is an integer number (103806087710).

Almost surely, 2^{2012111211222} is an apocalyptic number.

2012111211222 is an abundant number, since it is smaller than the sum of its proper divisors (2970580998858).

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

2012111211222 is a wasteful number, since it uses less digits than its factorization.

2012111211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030757 (or 1030754 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2012111211222 its reverse (2221121112102), we get a palindrome (4233232323324).

The spelling of 2012111211222 in words is "two trillion, twelve billion, one hundred eleven million, two hundred eleven thousand, two hundred twenty-two".