1000121223224 has 8 divisors (see below), whose sum is σ = 1875227293560. Its totient is φ = 500060611608.

The previous prime is 1000121223221. The next prime is 1000121223239. The reversal of 1000121223224 is 4223221210001.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1000121223224² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1000121223196 and 1000121223205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000121223221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62507576444 + ... + 62507576459.

It is an arithmetic number, because the mean of its divisors is an integer number (234403411695).

Almost surely, 2^{1000121223224} is an apocalyptic number.

It is an amenable number.

1000121223224 is a deficient number, since it is larger than the sum of its proper divisors (875106070336).

1000121223224 is a wasteful number, since it uses less digits than its factorization.

1000121223224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125015152909 (or 125015152905 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1000121223224 its reverse (4223221210001), we get a palindrome (5223342433225).

The spelling of 1000121223224 in words is "one trillion, one hundred twenty-one million, two hundred twenty-three thousand, two hundred twenty-four".