2011012122222 has 24 divisors (see below), whose sum is σ = 4359901007280. Its totient is φ = 669920747040.

The previous prime is 2011012122193. The next prime is 2011012122233. The reversal of 2011012122222 is 2222212101102.

It is a happy number.

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 = 2011012122195 and 2011012122204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34689154 + ... + 34747077.

It is an arithmetic number, because the mean of its divisors is an integer number (181662541970).

Almost surely, 2^{2011012122222} is an apocalyptic number.

2011012122222 is an abundant number, since it is smaller than the sum of its proper divisors (2348888885058).

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

2011012122222 is a wasteful number, since it uses less digits than its factorization.

2011012122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69437848 (or 69437845 counting only the distinct ones).

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

Adding to 2011012122222 its reverse (2222212101102), we get a palindrome (4233224223324).

The spelling of 2011012122222 in words is "two trillion, eleven billion, twelve million, one hundred twenty-two thousand, two hundred twenty-two".