212211106340 has 48 divisors (see below), whose sum is σ = 447040883520. Its totient is φ = 84618453120.

The previous prime is 212211106307. The next prime is 212211106351. The reversal of 212211106340 is 43601112212.

It is a super-3 number, since 3×212211106340³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21024695 + ... + 21034785.

It is an arithmetic number, because the mean of its divisors is an integer number (9313351740).

Almost surely, 2^212211106340 is an apocalyptic number.

212211106340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212211106340 is an abundant number, since it is smaller than the sum of its proper divisors (234829777180).

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

212211106340 is a wasteful number, since it uses less digits than its factorization.

212211106340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13292 (or 13290 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 212211106340 its reverse (43601112212), we get a palindrome (255812218552).

The spelling of 212211106340 in words is "two hundred twelve billion, two hundred eleven million, one hundred six thousand, three hundred forty".