212422143432420 has 144 divisors (see below), whose sum is σ = 644638813444080. Its totient is φ = 56620271566848.

The previous prime is 212422143432379. The next prime is 212422143432463. The reversal of 212422143432420 is 24234341224212.

212422143432420 is a `hidden beast` number, since 2 + 1 + 2 + 4 + 2 + 214 + 3 + 432 + 4 + 2 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 3650912061696 + 208771231370724 = 1910736^2 + 14448918^2 .

It is a super-3 number, since 3×212422143432420³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4253777692 + ... + 4253827628.

It is an arithmetic number, because the mean of its divisors is an integer number (4476658426695).

Almost surely, 2^{212422143432420} is an apocalyptic number.

212422143432420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212422143432420 is an abundant number, since it is smaller than the sum of its proper divisors (432216670011660).

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

212422143432420 is a wasteful number, since it uses less digits than its factorization.

212422143432420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60174 (or 60169 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 212422143432420 its reverse (24234341224212), we get a palindrome (236656484656632).

The spelling of 212422143432420 in words is "two hundred twelve trillion, four hundred twenty-two billion, one hundred forty-three million, four hundred thirty-two thousand, four hundred twenty".