1002122111212 has 24 divisors (see below), whose sum is σ = 1788324117440. Its totient is φ = 491243250960.

The previous prime is 1002122111183. The next prime is 1002122111213. The reversal of 1002122111212 is 2121112212001.

1002122111212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1002122111212² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002122111213) 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, 8804262 + ... + 8917357.

Almost surely, 2^{1002122111212} is an apocalyptic number.

It is an amenable number.

1002122111212 is a deficient number, since it is larger than the sum of its proper divisors (786202006228).

1002122111212 is a wasteful number, since it uses less digits than its factorization.

1002122111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17721901 (or 17721899 counting only the distinct ones).

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

Adding to 1002122111212 its reverse (2121112212001), we get a palindrome (3123234323213).

The spelling of 1002122111212 in words is "one trillion, two billion, one hundred twenty-two million, one hundred eleven thousand, two hundred twelve".