10212221434420 has 48 divisors (see below), whose sum is σ = 21483746581248. Its totient is φ = 4077641013120.

The previous prime is 10212221434399. The next prime is 10212221434447. The reversal of 10212221434420 is 2443412221201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26894485 + ... + 27271555.

It is an arithmetic number, because the mean of its divisors is an integer number (447578053776).

Almost surely, 2^{10212221434420} is an apocalyptic number.

10212221434420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212221434420 is an abundant number, since it is smaller than the sum of its proper divisors (11271525146828).

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

10212221434420 is a wasteful number, since it uses less digits than its factorization.

10212221434420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379480 (or 379478 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 10212221434420 its reverse (2443412221201), we get a palindrome (12655633655621).

The spelling of 10212221434420 in words is "ten trillion, two hundred twelve billion, two hundred twenty-one million, four hundred thirty-four thousand, four hundred twenty".