2211210212112 has 240 divisors, whose sum is σ = 7108148174400. Its totient is φ = 634623344640.

The previous prime is 2211210212077. The next prime is 2211210212219. The reversal of 2211210212112 is 2112120121122.

2211210212112 is a `hidden beast` number, since 221 + 1 + 210 + 21 + 211 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 144242464 + ... + 144257792.

It is an arithmetic number, because the mean of its divisors is an integer number (29617284060).

Almost surely, 2^{2211210212112} is an apocalyptic number.

2211210212112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211210212112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3554074087200).

2211210212112 is an abundant number, since it is smaller than the sum of its proper divisors (4896937962288).

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

2211210212112 is a wasteful number, since it uses less digits than its factorization.

2211210212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20166 (or 20157 counting only the distinct ones).

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

Adding to 2211210212112 its reverse (2112120121122), we get a palindrome (4323330333234).

The spelling of 2211210212112 in words is "two trillion, two hundred eleven billion, two hundred ten million, two hundred twelve thousand, one hundred twelve".