1021302212 has 108 divisors (see below), whose sum is σ = 2265371136. Its totient is φ = 394558560.

The previous prime is 1021302211. The next prime is 1021302259. The reversal of 1021302212 is 2122031201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (1021302211) 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 35 ways as a sum of consecutive naturals, for example, 5347037 + ... + 5347227.

Almost surely, 2^1021302212 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 1021302212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1132685568).

1021302212 is an abundant number, since it is smaller than the sum of its proper divisors (1244068924).

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

1021302212 is a wasteful number, since it uses less digits than its factorization.

1021302212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1021302212 is about 31957.8192622713. The cubic root of 1021302212 is about 1007.0509052230.

Adding to 1021302212 its reverse (2122031201), we get a palindrome (3143333413).

The spelling of 1021302212 in words is "one billion, twenty-one million, three hundred two thousand, two hundred twelve".