1002121001120 has 48 divisors (see below), whose sum is σ = 2374294696200. Its totient is φ = 399699815424.

The previous prime is 1002121001053. The next prime is 1002121001129. The reversal of 1002121001120 is 211001212001.

It can be written as a sum of positive squares in 4 ways, for example, as 596397863824 + 405723137296 = 772268^2 + 636964^2 .

It is not an unprimeable number, because it can be changed into a prime (1002121001129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8917307 + ... + 9028986.

Almost surely, 2^{1002121001120} is an apocalyptic number.

1002121001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002121001120 is an abundant number, since it is smaller than the sum of its proper divisors (1372173695080).

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

1002121001120 is a wasteful number, since it uses less digits than its factorization.

1002121001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17946657 (or 17946649 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1002121001120 its reverse (211001212001), we get a palindrome (1213122213121).

The spelling of 1002121001120 in words is "one trillion, two billion, one hundred twenty-one million, one thousand, one hundred twenty".