1071051212 has 72 divisors (see below), whose sum is σ = 2482099200. Its totient is φ = 399131040.

The previous prime is 1071051203. The next prime is 1071051217. The reversal of 1071051212 is 2121501701.

It is a happy number.

It is a super-2 number, since 2×1071051212² = 2294301397453337888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1071051217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38789 + ... + 60387.

It is an arithmetic number, because the mean of its divisors is an integer number (34473600).

Almost surely, 2^1071051212 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 1071051212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241049600).

1071051212 is an abundant number, since it is smaller than the sum of its proper divisors (1411047988).

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

1071051212 is a wasteful number, since it uses less digits than its factorization.

1071051212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21651 (or 21642 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 1071051212 is about 32726.9187672778. The cubic root of 1071051212 is about 1023.1439620535.

Adding to 1071051212 its reverse (2121501701), we get a palindrome (3192552913).

The spelling of 1071051212 in words is "one billion, seventy-one million, fifty-one thousand, two hundred twelve".