212200420402240 has 112 divisors (see below), whose sum is σ = 558287909453952. Its totient is φ = 76413859782656.

The previous prime is 212200420402193. The next prime is 212200420402241. The reversal of 212200420402240 is 42204024002212.

It is not an unprimeable number, because it can be changed into a prime (212200420402241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847862494 + ... + 848112733.

Almost surely, 2^{212200420402240} is an apocalyptic number.

212200420402240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212200420402240 is an abundant number, since it is smaller than the sum of its proper divisors (346087489051712).

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

212200420402240 is a wasteful number, since it uses less digits than its factorization.

212200420402240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695975284 (or 1695975274 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 212200420402240 its reverse (42204024002212), we get a palindrome (254404444404452).

The spelling of 212200420402240 in words is "two hundred twelve trillion, two hundred billion, four hundred twenty million, four hundred two thousand, two hundred forty".