211343400212 has 24 divisors (see below), whose sum is σ = 423101663040. Its totient is φ = 90486843840.

The previous prime is 211343400181. The next prime is 211343400251. The reversal of 211343400212 is 212004343112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3675089 + ... + 3732152.

It is an arithmetic number, because the mean of its divisors is an integer number (17629235960).

Almost surely, 2^211343400212 is an apocalyptic number.

It is an amenable number.

211343400212 is an abundant number, since it is smaller than the sum of its proper divisors (211758262828).

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

211343400212 is a wasteful number, since it uses less digits than its factorization.

211343400212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7408271 (or 7408269 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 211343400212 its reverse (212004343112), we get a palindrome (423347743324).

The spelling of 211343400212 in words is "two hundred eleven billion, three hundred forty-three million, four hundred thousand, two hundred twelve".