1021201344 has 70 divisors (see below), whose sum is σ = 3027176064. Its totient is φ = 340398720.

The previous prime is 1021201343. The next prime is 1021201381. The reversal of 1021201344 is 4431021201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021201343) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 93312 + ... + 103679.

Almost surely, 2^1021201344 is an apocalyptic number.

It is an amenable number.

1021201344 is an abundant number, since it is smaller than the sum of its proper divisors (2005974720).

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

1021201344 is an equidigital number, since it uses as much as digits as its factorization.

1021201344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197015 (or 196996 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1021201344 is about 31956.2410805777. The cubic root of 1021201344 is about 1007.0177506373.

Adding to 1021201344 its reverse (4431021201), we get a palindrome (5452222545).

The spelling of 1021201344 in words is "one billion, twenty-one million, two hundred one thousand, three hundred forty-four".