22451212452000 has 192 divisors, whose sum is σ = 77876653405824. Its totient is φ = 5634814054400.

The previous prime is 22451212451947. The next prime is 22451212452001. The reversal of 22451212452000 is 25421215422.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (22451212452001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54823482 + ... + 55231481.

It is an arithmetic number, because the mean of its divisors is an integer number (405607569822).

Almost surely, 2^{22451212452000} is an apocalyptic number.

22451212452000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22451212452000 is an abundant number, since it is smaller than the sum of its proper divisors (55425440953824).

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

22451212452000 is a wasteful number, since it uses less digits than its factorization.

22451212452000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110055008 (or 110054990 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 22451212452000 its reverse (25421215422), we get a palindrome (22476633667422).

The spelling of 22451212452000 in words is "twenty-two trillion, four hundred fifty-one billion, two hundred twelve million, four hundred fifty-two thousand".