100012012201 has 4 divisors (see below), whose sum is σ = 100625582992. Its totient is φ = 99398441412.

The previous prime is 100012012189. The next prime is 100012012213. The reversal of 100012012201 is 102210210001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102210210001 = 112247 ⋅910583.

It is an interprime number because it is at equal distance from previous prime (100012012189) and next prime (100012012213).

It is a cyclic number.

It is not a de Polignac number, because 100012012201 - 2⁹ = 100012011689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100012012501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306785151 + ... + 306785476.

It is an arithmetic number, because the mean of its divisors is an integer number (25156395748).

Almost surely, 2^100012012201 is an apocalyptic number.

It is an amenable number.

100012012201 is a deficient number, since it is larger than the sum of its proper divisors (613570791).

100012012201 is an equidigital number, since it uses as much as digits as its factorization.

100012012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613570790.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100012012201 its reverse (102210210001), we get a palindrome (202222222202).

It can be divided in two parts, 10001 and 2012201, that added together give a palindrome (2022202).

The spelling of 100012012201 in words is "one hundred billion, twelve million, twelve thousand, two hundred one".