212411352540 has 24 divisors (see below), whose sum is σ = 594751787280. Its totient is φ = 56643027328.

The previous prime is 212411352499. The next prime is 212411352547. The reversal of 212411352540 is 45253114212.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 212411352498 and 212411352507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212411352547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1770094545 + ... + 1770094664.

It is an arithmetic number, because the mean of its divisors is an integer number (24781324470).

Almost surely, 2^212411352540 is an apocalyptic number.

212411352540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212411352540 is an abundant number, since it is smaller than the sum of its proper divisors (382340434740).

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

212411352540 is a wasteful number, since it uses less digits than its factorization.

212411352540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540189221 (or 3540189219 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 212411352540 its reverse (45253114212), we get a palindrome (257664466752).

The spelling of 212411352540 in words is "two hundred twelve billion, four hundred eleven million, three hundred fifty-two thousand, five hundred forty".