21334033102420 has 12 divisors (see below), whose sum is σ = 44801469515124. Its totient is φ = 8533613240960.

The previous prime is 21334033102387. The next prime is 21334033102439. The reversal of 21334033102420 is 2420133043312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2529130424976 + 18804902677444 = 1590324^2 + 4336462^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533350827541 + ... + 533350827580.

It is an arithmetic number, because the mean of its divisors is an integer number (3733455792927).

Almost surely, 2^{21334033102420} is an apocalyptic number.

21334033102420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21334033102420 is an abundant number, since it is smaller than the sum of its proper divisors (23467436412704).

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

21334033102420 is a wasteful number, since it uses less digits than its factorization.

21334033102420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066701655130 (or 1066701655128 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 21334033102420 its reverse (2420133043312), we get a palindrome (23754166145732).

The spelling of 21334033102420 in words is "twenty-one trillion, three hundred thirty-four billion, thirty-three million, one hundred two thousand, four hundred twenty".