1024213021 has 16 divisors (see below), whose sum is σ = 1141033600. Its totient is φ = 913197888.

The previous prime is 1024213019. The next prime is 1024213027. The reversal of 1024213021 is 1203124201.

It is not a de Polignac number, because 1024213021 - 2¹ = 1024213019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1024212986 and 1024213004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024213027) 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, 59200 + ... + 74518.

It is an arithmetic number, because the mean of its divisors is an integer number (71314600).

Almost surely, 2^1024213021 is an apocalyptic number.

It is an amenable number.

1024213021 is a deficient number, since it is larger than the sum of its proper divisors (116820579).

1024213021 is a wasteful number, since it uses less digits than its factorization.

1024213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15508.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1024213021 is about 32003.3282800399. The cubic root of 1024213021 is about 1008.0067282058.

Adding to 1024213021 its reverse (1203124201), we get a palindrome (2227337222).

The spelling of 1024213021 in words is "one billion, twenty-four million, two hundred thirteen thousand, twenty-one".