1000001210100 has 72 divisors (see below), whose sum is σ = 2893742371968. Its totient is φ = 266629612800.

The previous prime is 1000001210053. The next prime is 1000001210101. The reversal of 1000001210100 is 10121000001.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000001210101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1944120 + ... + 2404080.

Almost surely, 2^{1000001210100} is an apocalyptic number.

1000001210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000001210100 is an abundant number, since it is smaller than the sum of its proper divisors (1893741161868).

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

1000001210100 is a wasteful number, since it uses less digits than its factorization.

1000001210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467225 (or 467218 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 1000001210100 its reverse (10121000001), we get a palindrome (1010122210101).

The spelling of 1000001210100 in words is "one trillion, one million, two hundred ten thousand, one hundred".