1000012101 has 32 divisors (see below), whose sum is σ = 1542758400. Its totient is φ = 570187200.

The previous prime is 1000012037. The next prime is 1000012121. The reversal of 1000012101 is 1012100001.

It is not a de Polignac number, because 1000012101 - 2⁶ = 1000012037 is a prime.

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 1000012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000012121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35500 + ... + 57098.

It is an arithmetic number, because the mean of its divisors is an integer number (48211200).

Almost surely, 2^1000012101 is an apocalyptic number.

1000012101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1000012101 is a deficient number, since it is larger than the sum of its proper divisors (542746299).

1000012101 is a wasteful number, since it uses less digits than its factorization.

1000012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21697.

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

The square root of 1000012101 is about 31622.9679347148. The cubic root of 1000012101 is about 1000.0040336504.

Adding to 1000012101 its reverse (1012100001), we get a palindrome (2012112102).

The spelling of 1000012101 in words is "one billion, twelve thousand, one hundred one".