12010122002221 has 16 divisors (see below), whose sum is σ = 13919749853184. Its totient is φ = 10149477550704.

The previous prime is 12010122002159. The next prime is 12010122002227. The reversal of 12010122002221 is 12220022101021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12010122002221 - 2¹³ = 12010121994029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12010122002195 and 12010122002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010122002227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20940325 + ... + 21506218.

It is an arithmetic number, because the mean of its divisors is an integer number (869984365824).

Almost surely, 2^{12010122002221} is an apocalyptic number.

It is an amenable number.

12010122002221 is a deficient number, since it is larger than the sum of its proper divisors (1909627850963).

12010122002221 is an equidigital number, since it uses as much as digits as its factorization.

12010122002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42447120.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12010122002221 its reverse (12220022101021), we get a palindrome (24230144103242).

The spelling of 12010122002221 in words is "twelve trillion, ten billion, one hundred twenty-two million, two thousand, two hundred twenty-one".