1002121211212 has 48 divisors (see below), whose sum is σ = 1997262489600. Its totient is φ = 435499285760.

The previous prime is 1002121211171. The next prime is 1002121211213. The reversal of 1002121211212 is 2121121212001.

It is a super-2 number, since 2×1002121211212² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002121211213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1921989 + ... + 2387107.

It is an arithmetic number, because the mean of its divisors is an integer number (41609635200).

Almost surely, 2^{1002121211212} is an apocalyptic number.

It is an amenable number.

1002121211212 is a deficient number, since it is larger than the sum of its proper divisors (995141278388).

1002121211212 is a wasteful number, since it uses less digits than its factorization.

1002121211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467286 (or 467284 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1002121211212 its reverse (2121121212001), we get a palindrome (3123242423213).

The spelling of 1002121211212 in words is "one trillion, two billion, one hundred twenty-one million, two hundred eleven thousand, two hundred twelve".