212143321104420 has 48 divisors (see below), whose sum is σ = 594400225668480. Its totient is φ = 56533559287296.

The previous prime is 212143321104301. The next prime is 212143321104469. The reversal of 212143321104420 is 24401123341212.

It is a happy number.

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

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, 1187191392 + ... + 1187370071.

It is an arithmetic number, because the mean of its divisors is an integer number (12383338034760).

Almost surely, 2^{212143321104420} is an apocalyptic number.

212143321104420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212143321104420 is an abundant number, since it is smaller than the sum of its proper divisors (382256904564060).

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

212143321104420 is a wasteful number, since it uses less digits than its factorization.

212143321104420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374562964 (or 2374562962 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 212143321104420 its reverse (24401123341212), we get a palindrome (236544444445632).

The spelling of 212143321104420 in words is "two hundred twelve trillion, one hundred forty-three billion, three hundred twenty-one million, one hundred four thousand, four hundred twenty".