211120640346 has 64 divisors (see below), whose sum is σ = 537631395840. Its totient is φ = 53669789760.

The previous prime is 211120640309. The next prime is 211120640389. The reversal of 211120640346 is 643046021112.

211120640346 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4839681 + ... + 4883108.

It is an arithmetic number, because the mean of its divisors is an integer number (8400490560).

Almost surely, 2^211120640346 is an apocalyptic number.

211120640346 is an abundant number, since it is smaller than the sum of its proper divisors (326510755494).

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

211120640346 is a wasteful number, since it uses less digits than its factorization.

211120640346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9722859.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 211120640346 its reverse (643046021112), we get a palindrome (854166661458).

The spelling of 211120640346 in words is "two hundred eleven billion, one hundred twenty million, six hundred forty thousand, three hundred forty-six".