21223233020334 has 16 divisors (see below), whose sum is σ = 42450536988288. Its totient is φ = 7073732515512.

The previous prime is 21223233020333. The next prime is 21223233020357. The reversal of 21223233020334 is 43302033232212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223233020333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169555042 + ... + 169680165.

It is an arithmetic number, because the mean of its divisors is an integer number (2653158561768).

Almost surely, 2^{21223233020334} is an apocalyptic number.

21223233020334 is an abundant number, since it is smaller than the sum of its proper divisors (21227303967954).

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

21223233020334 is a wasteful number, since it uses less digits than its factorization.

21223233020334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339245639.

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 21223233020334 its reverse (43302033232212), we get a palindrome (64525266252546).

The spelling of 21223233020334 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred thirty-three million, twenty thousand, three hundred thirty-four".