10012210111121 has 4 divisors (see below), whose sum is σ = 10068144246000. Its totient is φ = 9956275976244.

The previous prime is 10012210111009. The next prime is 10012210111129. The reversal of 10012210111121 is 12111101221001.

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-10012210111121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10012210111096 and 10012210111105.

It is not an unprimeable number, because it can be changed into a prime (10012210111129) 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, 27967067171 + ... + 27967067528.

It is an arithmetic number, because the mean of its divisors is an integer number (2517036061500).

Almost surely, 2^{10012210111121} is an apocalyptic number.

It is an amenable number.

10012210111121 is a deficient number, since it is larger than the sum of its proper divisors (55934134879).

10012210111121 is an equidigital number, since it uses as much as digits as its factorization.

10012210111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55934134878.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10012210111121 its reverse (12111101221001), we get a palindrome (22123311332122).

The spelling of 10012210111121 in words is "ten trillion, twelve billion, two hundred ten million, one hundred eleven thousand, one hundred twenty-one".