1002101100102 has 12 divisors (see below), whose sum is σ = 2171219050260. Its totient is φ = 334033700028.

The previous prime is 1002101100089. The next prime is 1002101100103. The reversal of 1002101100102 is 2010011012001.

It is a happy number.

It is a super-2 number, since 2×1002101100102² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002101100103) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 27836141652 + ... + 27836141687.

It is an arithmetic number, because the mean of its divisors is an integer number (180934920855).

Almost surely, 2^{1002101100102} is an apocalyptic number.

1002101100102 is an abundant number, since it is smaller than the sum of its proper divisors (1169117950158).

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

1002101100102 is a wasteful number, since it uses less digits than its factorization.

1002101100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55672283347 (or 55672283344 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1002101100102 its reverse (2010011012001), we get a palindrome (3012112112103).

The spelling of 1002101100102 in words is "one trillion, two billion, one hundred one million, one hundred thousand, one hundred two".