1020231212 has 48 divisors (see below), whose sum is σ = 2397196032. Its totient is φ = 366914880.

The previous prime is 1020231203. The next prime is 1020231221. The reversal of 1020231212 is 2121320201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020231203) and next prime (1020231221).

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 123398 + ... + 131405.

It is an arithmetic number, because the mean of its divisors is an integer number (49941584).

Almost surely, 2^1020231212 is an apocalyptic number.

It is an amenable number.

1020231212 is an abundant number, since it is smaller than the sum of its proper divisors (1376964820).

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

1020231212 is a wasteful number, since it uses less digits than its factorization.

1020231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254838 (or 254836 counting only the distinct ones).

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

The square root of 1020231212 is about 31941.0584045050. The cubic root of 1020231212 is about 1006.6987636994.

Adding to 1020231212 its reverse (2121320201), we get a palindrome (3141551413).

It can be divided in two parts, 10202 and 31212, that added together give a palindrome (41414).

The spelling of 1020231212 in words is "one billion, twenty million, two hundred thirty-one thousand, two hundred twelve".