1002133212 has 12 divisors (see below), whose sum is σ = 2338310856. Its totient is φ = 334044400.

The previous prime is 1002133199. The next prime is 1002133219. The reversal of 1002133212 is 2123312001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1002133191 and 1002133200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002133219) 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, 41755539 + ... + 41755562.

It is an arithmetic number, because the mean of its divisors is an integer number (194859238).

Almost surely, 2^1002133212 is an apocalyptic number.

1002133212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002133212 is an abundant number, since it is smaller than the sum of its proper divisors (1336177644).

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

1002133212 is a wasteful number, since it uses less digits than its factorization.

1002133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83511108 (or 83511106 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1002133212 is about 31656.4876763042. The cubic root of 1002133212 is about 1000.7105656435.

Adding to 1002133212 its reverse (2123312001), we get a palindrome (3125445213).

It can be divided in two parts, 100 and 2133212, that added together give a palindrome (2133312).

The spelling of 1002133212 in words is "one billion, two million, one hundred thirty-three thousand, two hundred twelve".