2211021110012 has 144 divisors (see below), whose sum is σ = 4675210565760. Its totient is φ = 906674745600.

The previous prime is 2211021110009. The next prime is 2211021110029. The reversal of 2211021110012 is 2100111201122.

It is a super-2 number, since 2×2211021110012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75884687 + ... + 75913817.

It is an arithmetic number, because the mean of its divisors is an integer number (32466740040).

Almost surely, 2^{2211021110012} is an apocalyptic number.

2211021110012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2211021110012 is an abundant number, since it is smaller than the sum of its proper divisors (2464189455748).

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

2211021110012 is a wasteful number, since it uses less digits than its factorization.

2211021110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29404 (or 29389 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2211021110012 its reverse (2100111201122), we get a palindrome (4311132311134).

The spelling of 2211021110012 in words is "two trillion, two hundred eleven billion, twenty-one million, one hundred ten thousand, twelve".