212213453040 has 80 divisors (see below), whose sum is σ = 730957456800. Its totient is φ = 56590253568.

The previous prime is 212213453003. The next prime is 212213453113. The reversal of 212213453040 is 40354312212.

212213453040 is a `hidden beast` number, since 2 + 12 + 2 + 1 + 345 + 304 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 212213452995 and 212213453013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49121325 + ... + 49125644.

It is an arithmetic number, because the mean of its divisors is an integer number (9136968210).

Almost surely, 2^212213453040 is an apocalyptic number.

212213453040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212213453040 is an abundant number, since it is smaller than the sum of its proper divisors (518744003760).

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

212213453040 is a wasteful number, since it uses less digits than its factorization.

212213453040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98246991 (or 98246979 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 212213453040 its reverse (40354312212), we get a palindrome (252567765252).

The spelling of 212213453040 in words is "two hundred twelve billion, two hundred thirteen million, four hundred fifty-three thousand, forty".