1002131212 has 24 divisors (see below), whose sum is σ = 1848652400. Its totient is φ = 474019776.

The previous prime is 1002131177. The next prime is 1002131213. The reversal of 1002131212 is 2121312001.

It is a junction number, because it is equal to n+sod(n) for n = 1002131192 and 1002131201.

It is not an unprimeable number, because it can be changed into a prime (1002131213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46714 + ... + 64702.

Almost surely, 2^1002131212 is an apocalyptic number.

It is an amenable number.

1002131212 is a deficient number, since it is larger than the sum of its proper divisors (846521188).

1002131212 is a wasteful number, since it uses less digits than its factorization.

1002131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18745 (or 18743 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1002131212 is about 31656.4560871870. The cubic root of 1002131212 is about 1000.7098999228.

Adding to 1002131212 its reverse (2121312001), we get a palindrome (3123443213).

It can be divided in two parts, 100 and 2131212, that added together give a palindrome (2131312).

The spelling of 1002131212 in words is "one billion, two million, one hundred thirty-one thousand, two hundred twelve".