212000434140 has 96 divisors (see below), whose sum is σ = 675720009216. Its totient is φ = 49159517440.

The previous prime is 212000434067. The next prime is 212000434157. The reversal of 212000434140 is 41434000212.

It is a congruent number.

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, 6967707 + ... + 6998066.

It is an arithmetic number, because the mean of its divisors is an integer number (7038750096).

Almost surely, 2^212000434140 is an apocalyptic number.

212000434140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212000434140 is an abundant number, since it is smaller than the sum of its proper divisors (463719575076).

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

212000434140 is a wasteful number, since it uses less digits than its factorization.

212000434140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13965819 (or 13965817 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 212000434140 its reverse (41434000212), we get a palindrome (253434434352).

The spelling of 212000434140 in words is "two hundred twelve billion, four hundred thirty-four thousand, one hundred forty".