1001102121018 has 16 divisors (see below), whose sum is σ = 2224671380160. Its totient is φ = 333700706988.

The previous prime is 1001102121007. The next prime is 1001102121029. The reversal of 1001102121018 is 8101212011001.

It is an interprime number because it is at equal distance from previous prime (1001102121007) and next prime (1001102121029).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 9269464030 + ... + 9269464137.

It is an arithmetic number, because the mean of its divisors is an integer number (139041961260).

Almost surely, 2^{1001102121018} is an apocalyptic number.

1001102121018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1001102121018 is an abundant number, since it is smaller than the sum of its proper divisors (1223569259142).

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

1001102121018 is a wasteful number, since it uses less digits than its factorization.

1001102121018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18538928178 (or 18538928172 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 1001102121018 its reverse (8101212011001), we get a palindrome (9102314132019).

The spelling of 1001102121018 in words is "one trillion, one billion, one hundred two million, one hundred twenty-one thousand, eighteen".