212011400304 has 120 divisors (see below), whose sum is σ = 647389671552. Its totient is φ = 64234719360.

The previous prime is 212011400291. The next prime is 212011400329. The reversal of 212011400304 is 403004110212.

212011400304 is a `hidden beast` number, since 21 + 201 + 140 + 0 + 304 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16605027 + ... + 16617789.

Almost surely, 2^212011400304 is an apocalyptic number.

212011400304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212011400304 is an abundant number, since it is smaller than the sum of its proper divisors (435378271248).

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

212011400304 is a wasteful number, since it uses less digits than its factorization.

212011400304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23275 (or 23266 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212011400304 its reverse (403004110212), we get a palindrome (615015510516).

The spelling of 212011400304 in words is "two hundred twelve billion, eleven million, four hundred thousand, three hundred four".