212140243100000 has 144 divisors (see below), whose sum is σ = 522120355033536. Its totient is φ = 84841486080000.

The previous prime is 212140243099957. The next prime is 212140243100011. The reversal of 212140243100000 is 1342041212.

It is a super-2 number, since 2×212140243100000² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 590120312 + ... + 590479688.

It is an arithmetic number, because the mean of its divisors is an integer number (3625835798844).

Almost surely, 2^{212140243100000} is an apocalyptic number.

212140243100000 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 212140243100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261060177516768).

212140243100000 is an abundant number, since it is smaller than the sum of its proper divisors (309980111933536).

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

212140243100000 is an frugal number, since it uses more digits than its factorization.

212140243100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365315 (or 365287 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212140243100000 its reverse (1342041212), we get a palindrome (212141585141212).

The spelling of 212140243100000 in words is "two hundred twelve trillion, one hundred forty billion, two hundred forty-three million, one hundred thousand".