1021012224 has 72 divisors (see below), whose sum is σ = 2724423072. Its totient is φ = 339456000.

The previous prime is 1021012207. The next prime is 1021012229. The reversal of 1021012224 is 4222101201.

It is not an unprimeable number, because it can be changed into a prime (1021012229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338724 + ... + 341724.

Almost surely, 2^1021012224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021012224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1362211536).

1021012224 is an abundant number, since it is smaller than the sum of its proper divisors (1703410848).

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

1021012224 is an equidigital number, since it uses as much as digits as its factorization.

1021012224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463 (or 3449 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1021012224 is about 31953.2818971698. The cubic root of 1021012224 is about 1006.9555823699.

Adding to 1021012224 its reverse (4222101201), we get a palindrome (5243113425).

The spelling of 1021012224 in words is "one billion, twenty-one million, twelve thousand, two hundred twenty-four".