211222200112 has 80 divisors (see below), whose sum is σ = 515277091584. Its totient is φ = 81479520000.

The previous prime is 211222200103. The next prime is 211222200121. The reversal of 211222200112 is 211002222112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (211222200103) and next prime (211222200121).

It is a super-2 number, since 2×211222200112² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 724314 + ... + 973177.

Almost surely, 2^211222200112 is an apocalyptic number.

211222200112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211222200112 is an abundant number, since it is smaller than the sum of its proper divisors (304054891472).

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

211222200112 is a wasteful number, since it uses less digits than its factorization.

211222200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697618 (or 1697612 counting only the distinct ones).

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

Adding to 211222200112 its reverse (211002222112), we get a palindrome (422224422224).

The spelling of 211222200112 in words is "two hundred eleven billion, two hundred twenty-two million, two hundred thousand, one hundred twelve".