22024621156224 has 128 divisors (see below), whose sum is σ = 59012199021600. Its totient is φ = 7277897539584.

The previous prime is 22024621156207. The next prime is 22024621156229. The reversal of 22024621156224 is 42265112642022.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×22024621156224² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22024621156229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20428962 + ... + 21480030.

Almost surely, 2^{22024621156224} is an apocalyptic number.

22024621156224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22024621156224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29506099510800).

22024621156224 is an abundant number, since it is smaller than the sum of its proper divisors (36987577865376).

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

22024621156224 is a wasteful number, since it uses less digits than its factorization.

22024621156224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051560 (or 1051548 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

Adding to 22024621156224 its reverse (42265112642022), we get a palindrome (64289733798246).

The spelling of 22024621156224 in words is "twenty-two trillion, twenty-four billion, six hundred twenty-one million, one hundred fifty-six thousand, two hundred twenty-four".