1024224121021 has 16 divisors (see below), whose sum is σ = 1051234008880. Its totient is φ = 997555668480.

The previous prime is 1024224120979. The next prime is 1024224121027. The reversal of 1024224121021 is 1201214224201.

It can be written as a sum of positive squares in 8 ways, for example, as 59092748100 + 965131372921 = 243090^2 + 982411^2 .

It is a cyclic number.

It is not a de Polignac number, because 1024224121021 - 2¹⁹ = 1024223596733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1024224120983 and 1024224121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024224121027) 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, 10570225 + ... + 10666681.

It is an arithmetic number, because the mean of its divisors is an integer number (65702125555).

Almost surely, 2^{1024224121021} is an apocalyptic number.

It is an amenable number.

1024224121021 is a deficient number, since it is larger than the sum of its proper divisors (27009887859).

1024224121021 is a wasteful number, since it uses less digits than its factorization.

1024224121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98224.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 1024224121021 its reverse (1201214224201), we get a palindrome (2225438345222).

The spelling of 1024224121021 in words is "one trillion, twenty-four billion, two hundred twenty-four million, one hundred twenty-one thousand, twenty-one".