10121112021001 has 4 divisors (see below), whose sum is σ = 10121156010000. Its totient is φ = 10121068032004.

The previous prime is 10121112020941. The next prime is 10121112021079. The reversal of 10121112021001 is 10012021112101.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10121112021001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121112021301) 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, 21647551 + ... + 22110148.

It is an arithmetic number, because the mean of its divisors is an integer number (2530289002500).

Almost surely, 2^{10121112021001} is an apocalyptic number.

It is an amenable number.

10121112021001 is a deficient number, since it is larger than the sum of its proper divisors (43988999).

10121112021001 is an equidigital number, since it uses as much as digits as its factorization.

10121112021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43988998.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10121112021001 its reverse (10012021112101), we get a palindrome (20133133133102).

The spelling of 10121112021001 in words is "ten trillion, one hundred twenty-one billion, one hundred twelve million, twenty-one thousand, one".