1002121312120 has 32 divisors (see below), whose sum is σ = 2255866096320. Its totient is φ = 400654188160.

The previous prime is 1002121312117. The next prime is 1002121312151. The reversal of 1002121312120 is 212131212001.

It is a super-2 number, since 2×1002121312120² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002121312094 and 1002121312103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5989471 + ... + 6154510.

It is an arithmetic number, because the mean of its divisors is an integer number (70495815510).

Almost surely, 2^{1002121312120} is an apocalyptic number.

1002121312120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002121312120 is an abundant number, since it is smaller than the sum of its proper divisors (1253744784200).

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

1002121312120 is a wasteful number, since it uses less digits than its factorization.

1002121312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12146055 (or 12146051 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1002121312120 its reverse (212131212001), we get a palindrome (1214252524121).

The spelling of 1002121312120 in words is "one trillion, two billion, one hundred twenty-one million, three hundred twelve thousand, one hundred twenty".