22451124454140 has 48 divisors (see below), whose sum is σ = 62863462384128. Its totient is φ = 5986936624704.

The previous prime is 22451124454117. The next prime is 22451124454147. The reversal of 22451124454140 is 4145442115422.

It is a super-2 number, since 2×22451124454140² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22451124454147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12865969 + ... + 14506391.

It is an arithmetic number, because the mean of its divisors is an integer number (1309655466336).

Almost surely, 2^{22451124454140} is an apocalyptic number.

22451124454140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22451124454140 is an abundant number, since it is smaller than the sum of its proper divisors (40412337929988).

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

22451124454140 is a wasteful number, since it uses less digits than its factorization.

22451124454140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868538 (or 1868536 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 39.

Adding to 22451124454140 its reverse (4145442115422), we get a palindrome (26596566569562).

The spelling of 22451124454140 in words is "twenty-two trillion, four hundred fifty-one billion, one hundred twenty-four million, four hundred fifty-four thousand, one hundred forty".