212442240000 has 220 divisors, whose sum is σ = 707574928544. Its totient is φ = 56650752000.

The previous prime is 212442239993. The next prime is 212442240061. The reversal of 212442240000 is 42244212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1864677 + ... + 1975323.

Almost surely, 2^212442240000 is an apocalyptic number.

212442240000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212442240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353787464272).

212442240000 is an abundant number, since it is smaller than the sum of its proper divisors (495132688544).

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

212442240000 is an equidigital number, since it uses as much as digits as its factorization.

212442240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110690 (or 110657 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 212442240000 its reverse (42244212), we get a palindrome (212484484212).

The spelling of 212442240000 in words is "two hundred twelve billion, four hundred forty-two million, two hundred forty thousand".