1021212344 has 32 divisors (see below), whose sum is σ = 1939755600. Its totient is φ = 503965440.

The previous prime is 1021212337. The next prime is 1021212347. The reversal of 1021212344 is 4432121201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021212347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583679 + ... + 585425.

Almost surely, 2^1021212344 is an apocalyptic number.

It is an amenable number.

1021212344 is a deficient number, since it is larger than the sum of its proper divisors (918543256).

1021212344 is a wasteful number, since it uses less digits than its factorization.

1021212344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663 (or 2659 counting only the distinct ones).

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

The square root of 1021212344 is about 31956.4131904693. The cubic root of 1021212344 is about 1007.0213663642.

Adding to 1021212344 its reverse (4432121201), we get a palindrome (5453333545).

The spelling of 1021212344 in words is "one billion, twenty-one million, two hundred twelve thousand, three hundred forty-four".