1021044212 has 12 divisors (see below), whose sum is σ = 1794497796. Its totient is φ = 508330560.

The previous prime is 1021044187. The next prime is 1021044217. The reversal of 1021044212 is 2124401201.

It can be written as a sum of positive squares in 2 ways, for example, as 397842916 + 623201296 = 19946^2 + 24964^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021044217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546839 + ... + 548702.

It is an arithmetic number, because the mean of its divisors is an integer number (149541483).

Almost surely, 2^1021044212 is an apocalyptic number.

It is an amenable number.

1021044212 is a deficient number, since it is larger than the sum of its proper divisors (773453584).

1021044212 is a wasteful number, since it uses less digits than its factorization.

1021044212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095778 (or 1095776 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1021044212 is about 31953.7824365129. The cubic root of 1021044212 is about 1006.9660981300.

Adding to 1021044212 its reverse (2124401201), we get a palindrome (3145445413).

The spelling of 1021044212 in words is "one billion, twenty-one million, forty-four thousand, two hundred twelve".