1001210020218 has 24 divisors (see below), whose sum is σ = 2283461450400. Its totient is φ = 316171585224.

The previous prime is 1001210020193. The next prime is 1001210020219. The reversal of 1001210020218 is 8120200121001.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001210020218.

It is not an unprimeable number, because it can be changed into a prime (1001210020219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1463756998 + ... + 1463757681.

It is an arithmetic number, because the mean of its divisors is an integer number (95144227100).

Almost surely, 2^{1001210020218} is an apocalyptic number.

1001210020218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1001210020218 is an abundant number, since it is smaller than the sum of its proper divisors (1282251430182).

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

1001210020218 is a wasteful number, since it uses less digits than its factorization.

1001210020218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927514706 (or 2927514703 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1001210020218 its reverse (8120200121001), we get a palindrome (9121410141219).

The spelling of 1001210020218 in words is "one trillion, one billion, two hundred ten million, twenty thousand, two hundred eighteen".