212241513400 has 48 divisors (see below), whose sum is σ = 563956025040. Its totient is φ = 72768518400.

The previous prime is 212241513389. The next prime is 212241513409. The reversal of 212241513400 is 4315142212.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212241513409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75799141 + ... + 75801940.

It is an arithmetic number, because the mean of its divisors is an integer number (11749083855).

Almost surely, 2^212241513400 is an apocalyptic number.

212241513400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212241513400 is an abundant number, since it is smaller than the sum of its proper divisors (351714511640).

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

212241513400 is a wasteful number, since it uses less digits than its factorization.

212241513400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151601104 (or 151601095 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 212241513400 its reverse (4315142212), we get a palindrome (216556655612).

The spelling of 212241513400 in words is "two hundred twelve billion, two hundred forty-one million, five hundred thirteen thousand, four hundred".