1020118212 has 90 divisors (see below), whose sum is σ = 2734879994. Its totient is φ = 331568640.

The previous prime is 1020118199. The next prime is 1020118237. The reversal of 1020118212 is 2128110201.

1020118212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 219454596 + 800663616 = 14814^2 + 28296^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 543708 + ... + 545580.

Almost surely, 2^1020118212 is an apocalyptic number.

1020118212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020118212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367439997).

1020118212 is an abundant number, since it is smaller than the sum of its proper divisors (1714761782).

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

1020118212 is a wasteful number, since it uses less digits than its factorization.

1020118212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971 (or 1919 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 1020118212 is about 31939.2894723724. The cubic root of 1020118212 is about 1006.6615952749.

Adding to 1020118212 its reverse (2128110201), we get a palindrome (3148228413).

The spelling of 1020118212 in words is "one billion, twenty million, one hundred eighteen thousand, two hundred twelve".