10012120101001 has 4 divisors (see below), whose sum is σ = 10012127112400. Its totient is φ = 10012113089604.

The previous prime is 10012120100993. The next prime is 10012120101019. The reversal of 10012120101001 is 10010102121001.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10012120101001 - 2³ = 10012120100993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10012120101601) 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, 511011 + ... + 4503928.

It is an arithmetic number, because the mean of its divisors is an integer number (2503031778100).

Almost surely, 2^{10012120101001} is an apocalyptic number.

It is an amenable number.

10012120101001 is a deficient number, since it is larger than the sum of its proper divisors (7011399).

10012120101001 is an equidigital number, since it uses as much as digits as its factorization.

10012120101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7011398.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10012120101001 its reverse (10010102121001), we get a palindrome (20022222222002).

The spelling of 10012120101001 in words is "ten trillion, twelve billion, one hundred twenty million, one hundred one thousand, one".