23212145451250 has 80 divisors (see below), whose sum is σ = 49727100234240. Its totient is φ = 7958016864000.

The previous prime is 23212145451211. The next prime is 23212145451259. The reversal of 23212145451250 is 5215454121232.

It is a super-2 number, since 2×23212145451250² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23212145451259) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 189087391 + ... + 189210109.

It is an arithmetic number, because the mean of its divisors is an integer number (621588752928).

Almost surely, 2^{23212145451250} is an apocalyptic number.

23212145451250 is an abundant number, since it is smaller than the sum of its proper divisors (26514954782990).

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

23212145451250 is a wasteful number, since it uses less digits than its factorization.

23212145451250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144365 (or 144350 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 23212145451250 its reverse (5215454121232), we get a palindrome (28427599572482).

The spelling of 23212145451250 in words is "twenty-three trillion, two hundred twelve billion, one hundred forty-five million, four hundred fifty-one thousand, two hundred fifty".