100012212001 has 4 divisors (see below), whose sum is σ = 107705459092. Its totient is φ = 92318964912.

The previous prime is 100012211969. The next prime is 100012212017. The reversal of 100012212001 is 100212210001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100212210001 = 10607 ⋅9447743.

It can be written as a sum of positive squares in 2 ways, for example, as 69064365601 + 30947846400 = 262801^2 + 175920^2 .

It is a cyclic number.

It is not a de Polignac number, because 100012212001 - 2⁵ = 100012211969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100012212301) 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, 3846623526 + ... + 3846623551.

It is an arithmetic number, because the mean of its divisors is an integer number (26926364773).

Almost surely, 2^100012212001 is an apocalyptic number.

It is an amenable number.

100012212001 is a deficient number, since it is larger than the sum of its proper divisors (7693247091).

100012212001 is an equidigital number, since it uses as much as digits as its factorization.

100012212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7693247090.

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

Adding to 100012212001 its reverse (100212210001), we get a palindrome (200224422002).

The spelling of 100012212001 in words is "one hundred billion, twelve million, two hundred twelve thousand, one".