1002120002102 has 64 divisors (see below), whose sum is σ = 1593611712000. Its totient is φ = 471686561280.

The previous prime is 1002120002087. The next prime is 1002120002183. The reversal of 1002120002102 is 2012000212001.

It is a happy number.

It is a super-2 number, since 2×1002120002102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 772643918 + ... + 772645214.

It is an arithmetic number, because the mean of its divisors is an integer number (24900183000).

Almost surely, 2^{1002120002102} is an apocalyptic number.

1002120002102 is a deficient number, since it is larger than the sum of its proper divisors (591491709898).

1002120002102 is a wasteful number, since it uses less digits than its factorization.

1002120002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1002120002102 its reverse (2012000212001), we get a palindrome (3014120214103).

The spelling of 1002120002102 in words is "one trillion, two billion, one hundred twenty million, two thousand, one hundred two".