23221445020452 has 192 divisors, whose sum is σ = 70350221813760. Its totient is φ = 6486510595968.

The previous prime is 23221445020447. The next prime is 23221445020469. The reversal of 23221445020452 is 25402054412232.

23221445020452 is a `hidden beast` number, since 2 + 3 + 2 + 2 + 1 + 445 + 0 + 204 + 5 + 2 = 666.

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 63 ways as a sum of consecutive naturals, for example, 10315303 + ... + 12363185.

It is an arithmetic number, because the mean of its divisors is an integer number (366407405280).

Almost surely, 2^{23221445020452} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23221445020452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35175110906880).

23221445020452 is an abundant number, since it is smaller than the sum of its proper divisors (47128776793308).

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

23221445020452 is a wasteful number, since it uses less digits than its factorization.

23221445020452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048239 (or 2048231 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 23221445020452 its reverse (25402054412232), we get a palindrome (48623499432684).

The spelling of 23221445020452 in words is "twenty-three trillion, two hundred twenty-one billion, four hundred forty-five million, twenty thousand, four hundred fifty-two".